{
  "id": "science-periodic-table",
  "name": "Komplexní Sada Dat Periodické Tabulky Prvků",
  "category": "science",
  "source": null,
  "updated": "2025-12-28",
  "columns": [
    {
      "key": "atomic_number",
      "label": "Atomic Number",
      "type": "number"
    },
    {
      "key": "symbol",
      "label": "Symbol",
      "type": "string"
    },
    {
      "key": "name",
      "label": "Element Name (EN)",
      "type": "string"
    },
    {
      "key": "atomic_mass",
      "label": "Atomic Mass",
      "type": "number"
    },
    {
      "key": "category",
      "label": "Category (EN)",
      "type": "string"
    },
    {
      "key": "group",
      "label": "Group",
      "type": "number"
    },
    {
      "key": "period",
      "label": "Period",
      "type": "number"
    },
    {
      "key": "block",
      "label": "Block",
      "type": "string"
    },
    {
      "key": "electron_config",
      "label": "Electron Configuration",
      "type": "string"
    },
    {
      "key": "electronegativity",
      "label": "Electronegativity",
      "type": "number"
    },
    {
      "key": "density",
      "label": "Density (g/cm³)",
      "type": "number"
    }
  ],
  "rows": [
    {
      "atomic_number": 1,
      "symbol": "H",
      "name": "Vodík",
      "atomic_mass": 1.008,
      "category": "Nekov",
      "group": 1,
      "period": 1,
      "block": "s",
      "electron_config": "1s¹",
      "electronegativity": 2.2,
      "density": 0.00009
    },
    {
      "atomic_number": 2,
      "symbol": "He",
      "name": "Helium",
      "atomic_mass": 4.003,
      "category": "Vzácný plyn",
      "group": 18,
      "period": 1,
      "block": "s",
      "electron_config": "1s²",
      "electronegativity": null,
      "density": 0.00018
    },
    {
      "atomic_number": 3,
      "symbol": "Li",
      "name": "Lithium",
      "atomic_mass": 6.941,
      "category": "Alkalický kov",
      "group": 1,
      "period": 2,
      "block": "s",
      "electron_config": "[He] 2s¹",
      "electronegativity": 0.98,
      "density": 0.534
    },
    {
      "atomic_number": 4,
      "symbol": "Be",
      "name": "Beryllium",
      "atomic_mass": 9.012,
      "category": "Kov alkalických zemin",
      "group": 2,
      "period": 2,
      "block": "s",
      "electron_config": "[He] 2s²",
      "electronegativity": 1.57,
      "density": 1.85
    },
    {
      "atomic_number": 5,
      "symbol": "B",
      "name": "Bor",
      "atomic_mass": 10.81,
      "category": "Polokov",
      "group": 13,
      "period": 2,
      "block": "p",
      "electron_config": "[He] 2s² 2p¹",
      "electronegativity": 2.04,
      "density": 2.34
    },
    {
      "atomic_number": 6,
      "symbol": "C",
      "name": "Uhlík",
      "atomic_mass": 12.01,
      "category": "Nekov",
      "group": 14,
      "period": 2,
      "block": "p",
      "electron_config": "[He] 2s² 2p²",
      "electronegativity": 2.55,
      "density": 2.27
    },
    {
      "atomic_number": 7,
      "symbol": "N",
      "name": "Dusík",
      "atomic_mass": 14.01,
      "category": "Nekov",
      "group": 15,
      "period": 2,
      "block": "p",
      "electron_config": "[He] 2s² 2p³",
      "electronegativity": 3.04,
      "density": 0.00125
    },
    {
      "atomic_number": 8,
      "symbol": "O",
      "name": "Kyslík",
      "atomic_mass": 16,
      "category": "Nekov",
      "group": 16,
      "period": 2,
      "block": "p",
      "electron_config": "[He] 2s² 2p⁴",
      "electronegativity": 3.44,
      "density": 0.00143
    },
    {
      "atomic_number": 9,
      "symbol": "F",
      "name": "Fluor",
      "atomic_mass": 19,
      "category": "Halogen",
      "group": 17,
      "period": 2,
      "block": "p",
      "electron_config": "[He] 2s² 2p⁵",
      "electronegativity": 3.98,
      "density": 0.0017
    },
    {
      "atomic_number": 10,
      "symbol": "Ne",
      "name": "Neon",
      "atomic_mass": 20.18,
      "category": "Vzácný plyn",
      "group": 18,
      "period": 2,
      "block": "p",
      "electron_config": "[He] 2s² 2p⁶",
      "electronegativity": null,
      "density": 0.0009
    },
    {
      "atomic_number": 11,
      "symbol": "Na",
      "name": "Sodík",
      "atomic_mass": 22.99,
      "category": "Alkalický kov",
      "group": 1,
      "period": 3,
      "block": "s",
      "electron_config": "[Ne] 3s¹",
      "electronegativity": 0.93,
      "density": 0.971
    },
    {
      "atomic_number": 12,
      "symbol": "Mg",
      "name": "Hořčík",
      "atomic_mass": 24.31,
      "category": "Kov alkalických zemin",
      "group": 2,
      "period": 3,
      "block": "s",
      "electron_config": "[Ne] 3s²",
      "electronegativity": 1.31,
      "density": 1.738
    },
    {
      "atomic_number": 13,
      "symbol": "Al",
      "name": "Hliník",
      "atomic_mass": 26.98,
      "category": "Postpřechodný kov",
      "group": 13,
      "period": 3,
      "block": "p",
      "electron_config": "[Ne] 3s² 3p¹",
      "electronegativity": 1.61,
      "density": 2.7
    },
    {
      "atomic_number": 14,
      "symbol": "Si",
      "name": "Křemík",
      "atomic_mass": 28.09,
      "category": "Polokov",
      "group": 14,
      "period": 3,
      "block": "p",
      "electron_config": "[Ne] 3s² 3p²",
      "electronegativity": 1.9,
      "density": 2.33
    },
    {
      "atomic_number": 15,
      "symbol": "P",
      "name": "Fosfor",
      "atomic_mass": 30.97,
      "category": "Nekov",
      "group": 15,
      "period": 3,
      "block": "p",
      "electron_config": "[Ne] 3s² 3p³",
      "electronegativity": 2.19,
      "density": 1.82
    },
    {
      "atomic_number": 16,
      "symbol": "S",
      "name": "Síra",
      "atomic_mass": 32.07,
      "category": "Nekov",
      "group": 16,
      "period": 3,
      "block": "p",
      "electron_config": "[Ne] 3s² 3p⁴",
      "electronegativity": 2.58,
      "density": 2.07
    },
    {
      "atomic_number": 17,
      "symbol": "Cl",
      "name": "Chlor",
      "atomic_mass": 35.45,
      "category": "Halogen",
      "group": 17,
      "period": 3,
      "block": "p",
      "electron_config": "[Ne] 3s² 3p⁵",
      "electronegativity": 3.16,
      "density": 0.00321
    },
    {
      "atomic_number": 18,
      "symbol": "Ar",
      "name": "Argon",
      "atomic_mass": 39.95,
      "category": "Vzácný plyn",
      "group": 18,
      "period": 3,
      "block": "p",
      "electron_config": "[Ne] 3s² 3p⁶",
      "electronegativity": null,
      "density": 0.00178
    },
    {
      "atomic_number": 19,
      "symbol": "K",
      "name": "Draslík",
      "atomic_mass": 39.1,
      "category": "Alkalický kov",
      "group": 1,
      "period": 4,
      "block": "s",
      "electron_config": "[Ar] 4s¹",
      "electronegativity": 0.82,
      "density": 0.862
    },
    {
      "atomic_number": 20,
      "symbol": "Ca",
      "name": "Vápník",
      "atomic_mass": 40.08,
      "category": "Kov alkalických zemin",
      "group": 2,
      "period": 4,
      "block": "s",
      "electron_config": "[Ar] 4s²",
      "electronegativity": 1,
      "density": 1.54
    },
    {
      "atomic_number": 21,
      "symbol": "Sc",
      "name": "Skandium",
      "atomic_mass": 44.96,
      "category": "Přechodný kov",
      "group": 3,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d¹ 4s²",
      "electronegativity": 1.36,
      "density": 2.99
    },
    {
      "atomic_number": 22,
      "symbol": "Ti",
      "name": "Titan",
      "atomic_mass": 47.87,
      "category": "Přechodný kov",
      "group": 4,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d² 4s²",
      "electronegativity": 1.54,
      "density": 4.54
    },
    {
      "atomic_number": 23,
      "symbol": "V",
      "name": "Vanad",
      "atomic_mass": 50.94,
      "category": "Přechodný kov",
      "group": 5,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d³ 4s²",
      "electronegativity": 1.63,
      "density": 6.11
    },
    {
      "atomic_number": 24,
      "symbol": "Cr",
      "name": "Chrom",
      "atomic_mass": 52,
      "category": "Přechodný kov",
      "group": 6,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d⁵ 4s¹",
      "electronegativity": 1.66,
      "density": 7.15
    },
    {
      "atomic_number": 25,
      "symbol": "Mn",
      "name": "Mangan",
      "atomic_mass": 54.94,
      "category": "Přechodný kov",
      "group": 7,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d⁵ 4s²",
      "electronegativity": 1.55,
      "density": 7.44
    },
    {
      "atomic_number": 26,
      "symbol": "Fe",
      "name": "Železo",
      "atomic_mass": 55.85,
      "category": "Přechodný kov",
      "group": 8,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d⁶ 4s²",
      "electronegativity": 1.83,
      "density": 7.87
    },
    {
      "atomic_number": 27,
      "symbol": "Co",
      "name": "Kobalt",
      "atomic_mass": 58.93,
      "category": "Přechodný kov",
      "group": 9,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d⁷ 4s²",
      "electronegativity": 1.88,
      "density": 8.86
    },
    {
      "atomic_number": 28,
      "symbol": "Ni",
      "name": "Nikl",
      "atomic_mass": 58.69,
      "category": "Přechodný kov",
      "group": 10,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d⁸ 4s²",
      "electronegativity": 1.91,
      "density": 8.91
    },
    {
      "atomic_number": 29,
      "symbol": "Cu",
      "name": "Měď",
      "atomic_mass": 63.55,
      "category": "Přechodný kov",
      "group": 11,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d¹⁰ 4s¹",
      "electronegativity": 1.9,
      "density": 8.96
    },
    {
      "atomic_number": 30,
      "symbol": "Zn",
      "name": "Zinek",
      "atomic_mass": 65.38,
      "category": "Přechodný kov",
      "group": 12,
      "period": 4,
      "block": "d",
      "electron_config": "[Ar] 3d¹⁰ 4s²",
      "electronegativity": 1.65,
      "density": 7.13
    },
    {
      "atomic_number": 31,
      "symbol": "Ga",
      "name": "Gallium",
      "atomic_mass": 69.72,
      "category": "Kov bloku p",
      "group": 13,
      "period": 4,
      "block": "p",
      "electron_config": "[Ar] 3d¹⁰ 4s² 4p¹",
      "electronegativity": 1.81,
      "density": 5.91
    },
    {
      "atomic_number": 32,
      "symbol": "Ge",
      "name": "Germanium",
      "atomic_mass": 72.63,
      "category": "Metaloid",
      "group": 14,
      "period": 4,
      "block": "p",
      "electron_config": "[Ar] 3d¹⁰ 4s² 4p²",
      "electronegativity": 2.01,
      "density": 5.32
    },
    {
      "atomic_number": 33,
      "symbol": "As",
      "name": "Arsen",
      "atomic_mass": 74.92,
      "category": "Metaloid",
      "group": 15,
      "period": 4,
      "block": "p",
      "electron_config": "[Ar] 3d¹⁰ 4s² 4p³",
      "electronegativity": 2.18,
      "density": 5.78
    },
    {
      "atomic_number": 34,
      "symbol": "Se",
      "name": "Selen",
      "atomic_mass": 78.97,
      "category": "Nekov",
      "group": 16,
      "period": 4,
      "block": "p",
      "electron_config": "[Ar] 3d¹⁰ 4s² 4p⁴",
      "electronegativity": 2.55,
      "density": 4.81
    },
    {
      "atomic_number": 35,
      "symbol": "Br",
      "name": "Brom",
      "atomic_mass": 79.9,
      "category": "Halogen",
      "group": 17,
      "period": 4,
      "block": "p",
      "electron_config": "[Ar] 3d¹⁰ 4s² 4p⁵",
      "electronegativity": 2.96,
      "density": 3.12
    },
    {
      "atomic_number": 36,
      "symbol": "Kr",
      "name": "Krypton",
      "atomic_mass": 83.8,
      "category": "Vzácný plyn",
      "group": 18,
      "period": 4,
      "block": "p",
      "electron_config": "[Ar] 3d¹⁰ 4s² 4p⁶",
      "electronegativity": 3,
      "density": 0.00375
    },
    {
      "atomic_number": 37,
      "symbol": "Rb",
      "name": "Rubidium",
      "atomic_mass": 85.47,
      "category": "Alkalický kov",
      "group": 1,
      "period": 5,
      "block": "s",
      "electron_config": "[Kr] 5s¹",
      "electronegativity": 0.82,
      "density": 1.53
    },
    {
      "atomic_number": 38,
      "symbol": "Sr",
      "name": "Stroncium",
      "atomic_mass": 87.62,
      "category": "Kov alkalických zemin",
      "group": 2,
      "period": 5,
      "block": "s",
      "electron_config": "[Kr] 5s²",
      "electronegativity": 0.95,
      "density": 2.64
    },
    {
      "atomic_number": 39,
      "symbol": "Y",
      "name": "Yttrium",
      "atomic_mass": 88.91,
      "category": "Přechodný kov",
      "group": 3,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d¹ 5s²",
      "electronegativity": 1.22,
      "density": 4.47
    },
    {
      "atomic_number": 40,
      "symbol": "Zr",
      "name": "Zirkonium",
      "atomic_mass": 91.22,
      "category": "Přechodný kov",
      "group": 4,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d² 5s²",
      "electronegativity": 1.33,
      "density": 6.52
    },
    {
      "atomic_number": 41,
      "symbol": "Nb",
      "name": "Niob",
      "atomic_mass": 92.91,
      "category": "Přechodný kov",
      "group": 5,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d⁴ 5s¹",
      "electronegativity": 1.6,
      "density": 8.57
    },
    {
      "atomic_number": 42,
      "symbol": "Mo",
      "name": "Molybden",
      "atomic_mass": 95.95,
      "category": "Přechodný kov",
      "group": 6,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d⁵ 5s¹",
      "electronegativity": 2.16,
      "density": 10.22
    },
    {
      "atomic_number": 43,
      "symbol": "Tc",
      "name": "Technecium",
      "atomic_mass": 98,
      "category": "Přechodný kov",
      "group": 7,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d⁵ 5s²",
      "electronegativity": 1.9,
      "density": 11.5
    },
    {
      "atomic_number": 44,
      "symbol": "Ru",
      "name": "Ruthenium",
      "atomic_mass": 101.1,
      "category": "Přechodný kov",
      "group": 8,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d⁷ 5s¹",
      "electronegativity": 2.2,
      "density": 12.37
    },
    {
      "atomic_number": 45,
      "symbol": "Rh",
      "name": "Rhodium",
      "atomic_mass": 102.9,
      "category": "Přechodný kov",
      "group": 9,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d⁸ 5s¹",
      "electronegativity": 2.28,
      "density": 12.41
    },
    {
      "atomic_number": 46,
      "symbol": "Pd",
      "name": "Palladium",
      "atomic_mass": 106.4,
      "category": "Přechodný kov",
      "group": 10,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d¹⁰",
      "electronegativity": 2.2,
      "density": 12.02
    },
    {
      "atomic_number": 47,
      "symbol": "Ag",
      "name": "Stříbro",
      "atomic_mass": 107.9,
      "category": "Přechodný kov",
      "group": 11,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d¹⁰ 5s¹",
      "electronegativity": 1.93,
      "density": 10.5
    },
    {
      "atomic_number": 48,
      "symbol": "Cd",
      "name": "Kadmium",
      "atomic_mass": 112.4,
      "category": "Přechodný kov",
      "group": 12,
      "period": 5,
      "block": "d",
      "electron_config": "[Kr] 4d¹⁰ 5s²",
      "electronegativity": 1.69,
      "density": 8.69
    },
    {
      "atomic_number": 49,
      "symbol": "In",
      "name": "Indium",
      "atomic_mass": 114.8,
      "category": "Postpřechodný kov",
      "group": 13,
      "period": 5,
      "block": "p",
      "electron_config": "[Kr] 4d¹⁰ 5s² 5p¹",
      "electronegativity": 1.78,
      "density": 7.31
    },
    {
      "atomic_number": 50,
      "symbol": "Sn",
      "name": "Cín",
      "atomic_mass": 118.7,
      "category": "Postpřechodný kov",
      "group": 14,
      "period": 5,
      "block": "p",
      "electron_config": "[Kr] 4d¹⁰ 5s² 5p²",
      "electronegativity": 1.96,
      "density": 7.29
    },
    {
      "atomic_number": 51,
      "symbol": "Sb",
      "name": "Antimon",
      "atomic_mass": 121.8,
      "category": "Metaloid",
      "group": 15,
      "period": 5,
      "block": "p",
      "electron_config": "[Kr] 4d¹⁰ 5s² 5p³",
      "electronegativity": 2.05,
      "density": 6.69
    },
    {
      "atomic_number": 52,
      "symbol": "Te",
      "name": "Tellur",
      "atomic_mass": 127.6,
      "category": "Metaloid",
      "group": 16,
      "period": 5,
      "block": "p",
      "electron_config": "[Kr] 4d¹⁰ 5s² 5p⁴",
      "electronegativity": 2.1,
      "density": 6.24
    },
    {
      "atomic_number": 53,
      "symbol": "I",
      "name": "Jod",
      "atomic_mass": 126.9,
      "category": "Halogen",
      "group": 17,
      "period": 5,
      "block": "p",
      "electron_config": "[Kr] 4d¹⁰ 5s² 5p⁵",
      "electronegativity": 2.66,
      "density": 4.93
    },
    {
      "atomic_number": 54,
      "symbol": "Xe",
      "name": "Xenon",
      "atomic_mass": 131.3,
      "category": "Vzácný plyn",
      "group": 18,
      "period": 5,
      "block": "p",
      "electron_config": "[Kr] 4d¹⁰ 5s² 5p⁶",
      "electronegativity": 2.6,
      "density": 0.00589
    },
    {
      "atomic_number": 55,
      "symbol": "Cs",
      "name": "Cesium",
      "atomic_mass": 132.9,
      "category": "Alkalický kov",
      "group": 1,
      "period": 6,
      "block": "s",
      "electron_config": "[Xe] 6s¹",
      "electronegativity": 0.79,
      "density": 1.87
    },
    {
      "atomic_number": 56,
      "symbol": "Ba",
      "name": "Baryum",
      "atomic_mass": 137.3,
      "category": "Kov alkalických zemin",
      "group": 2,
      "period": 6,
      "block": "s",
      "electron_config": "[Xe] 6s²",
      "electronegativity": 0.89,
      "density": 3.59
    },
    {
      "atomic_number": 57,
      "symbol": "La",
      "name": "Lanthan",
      "atomic_mass": 138.9,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 5d¹ 6s²",
      "electronegativity": 1.1,
      "density": 6.15
    },
    {
      "atomic_number": 58,
      "symbol": "Ce",
      "name": "Cer",
      "atomic_mass": 140.1,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f¹ 5d¹ 6s²",
      "electronegativity": 1.12,
      "density": 6.77
    },
    {
      "atomic_number": 59,
      "symbol": "Pr",
      "name": "Praseodym",
      "atomic_mass": 140.9,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f³ 6s²",
      "electronegativity": 1.13,
      "density": 6.77
    },
    {
      "atomic_number": 60,
      "symbol": "Nd",
      "name": "Neodym",
      "atomic_mass": 144.2,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f⁴ 6s²",
      "electronegativity": 1.14,
      "density": 7.01
    },
    {
      "atomic_number": 61,
      "symbol": "Pm",
      "name": "Promethium",
      "atomic_mass": 145,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f⁵ 6s²",
      "electronegativity": 1.13,
      "density": 7.26
    },
    {
      "atomic_number": 62,
      "symbol": "Sm",
      "name": "Samarium",
      "atomic_mass": 150.4,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f⁶ 6s²",
      "electronegativity": 1.17,
      "density": 7.52
    },
    {
      "atomic_number": 63,
      "symbol": "Eu",
      "name": "Europium",
      "atomic_mass": 152,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f⁷ 6s²",
      "electronegativity": 1.2,
      "density": 5.24
    },
    {
      "atomic_number": 64,
      "symbol": "Gd",
      "name": "Gadolinium",
      "atomic_mass": 157.3,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f⁷ 5d¹ 6s²",
      "electronegativity": 1.2,
      "density": 7.9
    },
    {
      "atomic_number": 65,
      "symbol": "Tb",
      "name": "Terbium",
      "atomic_mass": 158.9,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f⁹ 6s²",
      "electronegativity": 1.2,
      "density": 8.23
    },
    {
      "atomic_number": 66,
      "symbol": "Dy",
      "name": "Dysprosium",
      "atomic_mass": 162.5,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f¹⁰ 6s²",
      "electronegativity": 1.22,
      "density": 8.55
    },
    {
      "atomic_number": 67,
      "symbol": "Ho",
      "name": "Holmium",
      "atomic_mass": 164.9,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f¹¹ 6s²",
      "electronegativity": 1.23,
      "density": 8.8
    },
    {
      "atomic_number": 68,
      "symbol": "Er",
      "name": "Erbium",
      "atomic_mass": 167.3,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f¹² 6s²",
      "electronegativity": 1.24,
      "density": 9.07
    },
    {
      "atomic_number": 69,
      "symbol": "Tm",
      "name": "Thulium",
      "atomic_mass": 168.9,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f¹³ 6s²",
      "electronegativity": 1.25,
      "density": 9.32
    },
    {
      "atomic_number": 70,
      "symbol": "Yb",
      "name": "Ytterbium",
      "atomic_mass": 173,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "f",
      "electron_config": "[Xe] 4f¹⁴ 6s²",
      "electronegativity": 1.1,
      "density": 6.9
    },
    {
      "atomic_number": 71,
      "symbol": "Lu",
      "name": "Lutetium",
      "atomic_mass": 175,
      "category": "Lanthanoid",
      "group": 3,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d¹ 6s²",
      "electronegativity": 1.27,
      "density": 9.84
    },
    {
      "atomic_number": 72,
      "symbol": "Hf",
      "name": "Hafnium",
      "atomic_mass": 178.5,
      "category": "Přechodný kov",
      "group": 4,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d² 6s²",
      "electronegativity": 1.3,
      "density": 13.31
    },
    {
      "atomic_number": 73,
      "symbol": "Ta",
      "name": "Tantal",
      "atomic_mass": 180.9,
      "category": "Přechodný kov",
      "group": 5,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d³ 6s²",
      "electronegativity": 1.5,
      "density": 16.65
    },
    {
      "atomic_number": 74,
      "symbol": "W",
      "name": "Wolfram",
      "atomic_mass": 183.8,
      "category": "Přechodný kov",
      "group": 6,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d⁴ 6s²",
      "electronegativity": 2.36,
      "density": 19.25
    },
    {
      "atomic_number": 75,
      "symbol": "Re",
      "name": "Rhenium",
      "atomic_mass": 186.2,
      "category": "Přechodný kov",
      "group": 7,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d⁵ 6s²",
      "electronegativity": 1.9,
      "density": 21.02
    },
    {
      "atomic_number": 76,
      "symbol": "Os",
      "name": "Osmium",
      "atomic_mass": 190.2,
      "category": "Přechodný kov",
      "group": 8,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d⁶ 6s²",
      "electronegativity": 2.2,
      "density": 22.61
    },
    {
      "atomic_number": 77,
      "symbol": "Ir",
      "name": "Iridium",
      "atomic_mass": 192.2,
      "category": "Přechodný kov",
      "group": 9,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d⁷ 6s²",
      "electronegativity": 2.2,
      "density": 22.56
    },
    {
      "atomic_number": 78,
      "symbol": "Pt",
      "name": "Platina",
      "atomic_mass": 195.1,
      "category": "Přechodný kov",
      "group": 10,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d⁹ 6s¹",
      "electronegativity": 2.28,
      "density": 21.45
    },
    {
      "atomic_number": 79,
      "symbol": "Au",
      "name": "Zlato",
      "atomic_mass": 197,
      "category": "Přechodný kov",
      "group": 11,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s¹",
      "electronegativity": 2.54,
      "density": 19.32
    },
    {
      "atomic_number": 80,
      "symbol": "Hg",
      "name": "Rtuť",
      "atomic_mass": 200.6,
      "category": "Přechodný kov",
      "group": 12,
      "period": 6,
      "block": "d",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s²",
      "electronegativity": 2,
      "density": 13.55
    },
    {
      "atomic_number": 81,
      "symbol": "Tl",
      "name": "Thallium",
      "atomic_mass": 204.4,
      "category": "Kovy po přechodu",
      "group": 13,
      "period": 6,
      "block": "p",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p¹",
      "electronegativity": 1.62,
      "density": 11.85
    },
    {
      "atomic_number": 82,
      "symbol": "Pb",
      "name": "Olovo",
      "atomic_mass": 207.2,
      "category": "Kovy po přechodu",
      "group": 14,
      "period": 6,
      "block": "p",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p²",
      "electronegativity": 1.87,
      "density": 11.35
    },
    {
      "atomic_number": 83,
      "symbol": "Bi",
      "name": "Bismut",
      "atomic_mass": 209,
      "category": "Kovy po přechodu",
      "group": 15,
      "period": 6,
      "block": "p",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p³",
      "electronegativity": 2.02,
      "density": 9.79
    },
    {
      "atomic_number": 84,
      "symbol": "Po",
      "name": "Polonium",
      "atomic_mass": 209,
      "category": "Polokov",
      "group": 16,
      "period": 6,
      "block": "p",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁴",
      "electronegativity": 2,
      "density": 9.2
    },
    {
      "atomic_number": 85,
      "symbol": "At",
      "name": "Astat",
      "atomic_mass": 210,
      "category": "Halogen",
      "group": 17,
      "period": 6,
      "block": "p",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁵",
      "electronegativity": 2.2,
      "density": 7
    },
    {
      "atomic_number": 86,
      "symbol": "Rn",
      "name": "Radon",
      "atomic_mass": 222,
      "category": "Vzácný plyn",
      "group": 18,
      "period": 6,
      "block": "p",
      "electron_config": "[Xe] 4f¹⁴ 5d¹⁰ 6s² 6p⁶",
      "electronegativity": 2.2,
      "density": 0.00973
    },
    {
      "atomic_number": 87,
      "symbol": "Fr",
      "name": "Francium",
      "atomic_mass": 223,
      "category": "Alkalický kov",
      "group": 1,
      "period": 7,
      "block": "s",
      "electron_config": "[Rn] 7s¹",
      "electronegativity": 0.7,
      "density": 1.87
    },
    {
      "atomic_number": 88,
      "symbol": "Ra",
      "name": "Radium",
      "atomic_mass": 226,
      "category": "Kovy alkalických zemin",
      "group": 2,
      "period": 7,
      "block": "s",
      "electron_config": "[Rn] 7s²",
      "electronegativity": 0.9,
      "density": 5.5
    },
    {
      "atomic_number": 89,
      "symbol": "Ac",
      "name": "Aktinium",
      "atomic_mass": 227,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 6d¹ 7s²",
      "electronegativity": 1.1,
      "density": 10.07
    },
    {
      "atomic_number": 90,
      "symbol": "Th",
      "name": "Thorium",
      "atomic_mass": 232,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 6d² 7s²",
      "electronegativity": 1.3,
      "density": 11.72
    },
    {
      "atomic_number": 91,
      "symbol": "Pa",
      "name": "Protaktinium",
      "atomic_mass": 231,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f² 6d¹ 7s²",
      "electronegativity": 1.5,
      "density": 15.37
    },
    {
      "atomic_number": 92,
      "symbol": "U",
      "name": "Uran",
      "atomic_mass": 238,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f³ 6d¹ 7s²",
      "electronegativity": 1.38,
      "density": 18.95
    },
    {
      "atomic_number": 93,
      "symbol": "Np",
      "name": "Neptunium",
      "atomic_mass": 237,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f⁴ 6d¹ 7s²",
      "electronegativity": 1.36,
      "density": 20.45
    },
    {
      "atomic_number": 94,
      "symbol": "Pu",
      "name": "Plutonium",
      "atomic_mass": 244,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f⁶ 7s²",
      "electronegativity": 1.28,
      "density": 19.84
    },
    {
      "atomic_number": 95,
      "symbol": "Am",
      "name": "Americium",
      "atomic_mass": 243,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f⁷ 7s²",
      "electronegativity": 1.3,
      "density": 13.69
    },
    {
      "atomic_number": 96,
      "symbol": "Cm",
      "name": "Curium",
      "atomic_mass": 247,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f⁷ 6d¹ 7s²",
      "electronegativity": 1.3,
      "density": 13.51
    },
    {
      "atomic_number": 97,
      "symbol": "Bk",
      "name": "Berkelium",
      "atomic_mass": 247,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f⁹ 7s²",
      "electronegativity": 1.3,
      "density": 14.79
    },
    {
      "atomic_number": 98,
      "symbol": "Cf",
      "name": "Kalifornium",
      "atomic_mass": 251,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f¹⁰ 7s²",
      "electronegativity": 1.3,
      "density": 15.1
    },
    {
      "atomic_number": 99,
      "symbol": "Es",
      "name": "Einsteinium",
      "atomic_mass": 252,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f¹¹ 7s²",
      "electronegativity": 1.3,
      "density": 8.84
    },
    {
      "atomic_number": 100,
      "symbol": "Fm",
      "name": "Fermium",
      "atomic_mass": 257,
      "category": "Aktinoid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f¹² 7s²",
      "electronegativity": 1.3,
      "density": null
    },
    {
      "atomic_number": 101,
      "symbol": "Md",
      "name": "Mendelevium",
      "atomic_mass": 258,
      "category": "Aktinid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f¹³ 7s²",
      "electronegativity": 1.3,
      "density": null
    },
    {
      "atomic_number": 102,
      "symbol": "No",
      "name": "Nobelium",
      "atomic_mass": 259,
      "category": "Aktinid",
      "group": 3,
      "period": 7,
      "block": "f",
      "electron_config": "[Rn] 5f¹⁴ 7s²",
      "electronegativity": 1.3,
      "density": null
    },
    {
      "atomic_number": 103,
      "symbol": "Lr",
      "name": "Lawrencium",
      "atomic_mass": 266,
      "category": "Aktinid",
      "group": 3,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 7s² 7p¹",
      "electronegativity": 1.3,
      "density": null
    },
    {
      "atomic_number": 104,
      "symbol": "Rf",
      "name": "Rutherfordium",
      "atomic_mass": 267,
      "category": "Přechodný kov",
      "group": 4,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d² 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 105,
      "symbol": "Db",
      "name": "Dubnium",
      "atomic_mass": 268,
      "category": "Přechodný kov",
      "group": 5,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d³ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 106,
      "symbol": "Sg",
      "name": "Seaborgium",
      "atomic_mass": 269,
      "category": "Přechodný kov",
      "group": 6,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d⁴ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 107,
      "symbol": "Bh",
      "name": "Bohrium",
      "atomic_mass": 270,
      "category": "Přechodný kov",
      "group": 7,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d⁵ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 108,
      "symbol": "Hs",
      "name": "Hassium",
      "atomic_mass": 277,
      "category": "Přechodný kov",
      "group": 8,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d⁶ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 109,
      "symbol": "Mt",
      "name": "Meitnerium",
      "atomic_mass": 278,
      "category": "Neznámý",
      "group": 9,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d⁷ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 110,
      "symbol": "Ds",
      "name": "Darmstadtium",
      "atomic_mass": 281,
      "category": "Neznámý",
      "group": 10,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d⁸ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 111,
      "symbol": "Rg",
      "name": "Roentgenium",
      "atomic_mass": 282,
      "category": "Neznámý",
      "group": 11,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d⁹ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 112,
      "symbol": "Cn",
      "name": "Kopernicium",
      "atomic_mass": 285,
      "category": "Přechodný kov",
      "group": 12,
      "period": 7,
      "block": "d",
      "electron_config": "[Rn] 5f¹⁴ 6d¹⁰ 7s²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 113,
      "symbol": "Nh",
      "name": "Nihonium",
      "atomic_mass": 286,
      "category": "Neznámý",
      "group": 13,
      "period": 7,
      "block": "p",
      "electron_config": "[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p¹",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 114,
      "symbol": "Fl",
      "name": "Flerovium",
      "atomic_mass": 289,
      "category": "Postpřechodný kov",
      "group": 14,
      "period": 7,
      "block": "p",
      "electron_config": "[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p²",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 115,
      "symbol": "Mc",
      "name": "Moscovium",
      "atomic_mass": 290,
      "category": "Neznámý",
      "group": 15,
      "period": 7,
      "block": "p",
      "electron_config": "[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p³",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 116,
      "symbol": "Lv",
      "name": "Livermorium",
      "atomic_mass": 293,
      "category": "Neznámý",
      "group": 16,
      "period": 7,
      "block": "p",
      "electron_config": "[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁴",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 117,
      "symbol": "Ts",
      "name": "Tennessin",
      "atomic_mass": 294,
      "category": "Halogen",
      "group": 17,
      "period": 7,
      "block": "p",
      "electron_config": "[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁵",
      "electronegativity": null,
      "density": null
    },
    {
      "atomic_number": 118,
      "symbol": "Og",
      "name": "Oganesson",
      "atomic_mass": 294,
      "category": "Vzácný plyn",
      "group": 18,
      "period": 7,
      "block": "p",
      "electron_config": "[Rn] 5f¹⁴ 6d¹⁰ 7s² 7p⁶",
      "electronegativity": null,
      "density": null
    }
  ],
  "meta": {
    "seo_title": "Periodická tabulka prvků - Stáhnout Zdarma (Excel/CSV/PDF)",
    "seo_description": "Stáhněte si kompletní Periodickou tabulku 118 prvků s atomovými daty. Zdarma ve formátech Excel, CSV a PDF pro vědce a studenty.",
    "title": "Komplexní Sada Dat Periodické Tabulky Prvků",
    "description": "Tato datová sada poskytuje podrobné informace o všech 118 známých chemických prvcích, včetně atomového čísla, symbolu, názvu, atomové hmotnosti, kategorie, skupiny, periody, bloku, elektronové konfigurace, elektronegativity a hustoty.",
    "key_takeaways": [
      "Získejte přístup k komplexním datům pro všech 118 chemických prvků.",
      "Prozkoumejte klíčové vlastnosti, jako je atomová hmotnost, elektronegativita a elektronová konfigurace.",
      "Stáhněte si hotová data pro studium chemie a vědecký výzkum.",
      "Využijte strukturované informace pro vzdělávací a vývojové projekty."
    ],
    "keywords": [
      "periodická tabulka data",
      "seznam chemických prvků",
      "atomové vlastnosti csv",
      "sada dat prvků excel",
      "chemická data zdarma",
      "seznam atomových čísel"
    ],
    "use_cases": [
      "Importujte soubor **CSV** do své databáze SQL nebo skriptu Python pro analýzu trendů prvků a vytváření chemických aplikací.",
      "Použijte soubor **Excel** k filtrování prvků podle kategorie, skupiny nebo bloku, vytváření vlastních grafů a přípravě zpráv pro lekce chemie.",
      "Vytiskněte verzi **PDF** pro jasnou, offline referenci ve třídách, laboratořích nebo pro rychlé studijní průvodce.",
      "Využijte tuto komplexní datovou sadu pro tvorbu vzdělávacího obsahu, vědecké simulace nebo akademický výzkum vlastností materiálů."
    ]
  },
  "record_count": 118,
  "title": "Komplexní Sada Dat Periodické Tabulky Prvků"
}