{
  "elements": [
    {"number": 1, "symbol": "H", "name": "Hydrogen", "atomic_mass": 1.008, "category": "Nonmetal", "phase": "Gas", "discovered": 1766},
    {"number": 2, "symbol": "He", "name": "Helium", "atomic_mass": 4.003, "category": "Noble Gas", "phase": "Gas", "discovered": 1868},
    {"number": 3, "symbol": "Li", "name": "Lithium", "atomic_mass": 6.941, "category": "Alkali Metal", "phase": "Solid", "discovered": 1817},
    {"number": 4, "symbol": "Be", "name": "Beryllium", "atomic_mass": 9.012, "category": "Alkaline Earth Metal", "phase": "Solid", "discovered": 1798},
    {"number": 5, "symbol": "B", "name": "Boron", "atomic_mass": 10.81, "category": "Metalloid", "phase": "Solid", "discovered": 1808},
    {"number": 6, "symbol": "C", "name": "Carbon", "atomic_mass": 12.011, "category": "Nonmetal", "phase": "Solid", "discovered": -3750},
    {"number": 7, "symbol": "N", "name": "Nitrogen", "atomic_mass": 14.007, "category": "Nonmetal", "phase": "Gas", "discovered": 1772},
    {"number": 8, "symbol": "O", "name": "Oxygen", "atomic_mass": 15.999, "category": "Nonmetal", "phase": "Gas", "discovered": 1774},
    {"number": 9, "symbol": "F", "name": "Fluorine", "atomic_mass": 18.998, "category": "Halogen", "phase": "Gas", "discovered": 1886},
    {"number": 10, "symbol": "Ne", "name": "Neon", "atomic_mass": 20.18, "category": "Noble Gas", "phase": "Gas", "discovered": 1898},
    {"number": 11, "symbol": "Na", "name": "Sodium", "atomic_mass": 22.99, "category": "Alkali Metal", "phase": "Solid", "discovered": 1807},
    {"number": 12, "symbol": "Mg", "name": "Magnesium", "atomic_mass": 24.305, "category": "Alkaline Earth Metal", "phase": "Solid", "discovered": 1808},
    {"number": 13, "symbol": "Al", "name": "Aluminum", "atomic_mass": 26.982, "category": "Post-transition Metal", "phase": "Solid", "discovered": 1825},
    {"number": 14, "symbol": "Si", "name": "Silicon", "atomic_mass": 28.086, "category": "Metalloid", "phase": "Solid", "discovered": 1824},
    {"number": 15, "symbol": "P", "name": "Phosphorus", "atomic_mass": 30.974, "category": "Nonmetal", "phase": "Solid", "discovered": 1669},
    {"number": 16, "symbol": "S", "name": "Sulfur", "atomic_mass": 32.065, "category": "Nonmetal", "phase": "Solid", "discovered": -2000},
    {"number": 17, "symbol": "Cl", "name": "Chlorine", "atomic_mass": 35.453, "category": "Halogen", "phase": "Gas", "discovered": 1774},
    {"number": 18, "symbol": "Ar", "name": "Argon", "atomic_mass": 39.948, "category": "Noble Gas", "phase": "Gas", "discovered": 1894},
    {"number": 19, "symbol": "K", "name": "Potassium", "atomic_mass": 39.098, "category": "Alkali Metal", "phase": "Solid", "discovered": 1807},
    {"number": 20, "symbol": "Ca", "name": "Calcium", "atomic_mass": 40.078, "category": "Alkaline Earth Metal", "phase": "Solid", "discovered": 1808},
    {"number": 26, "symbol": "Fe", "name": "Iron", "atomic_mass": 55.845, "category": "Transition Metal", "phase": "Solid", "discovered": -5000},
    {"number": 29, "symbol": "Cu", "name": "Copper", "atomic_mass": 63.546, "category": "Transition Metal", "phase": "Solid", "discovered": -9000},
    {"number": 30, "symbol": "Zn", "name": "Zinc", "atomic_mass": 65.38, "category": "Transition Metal", "phase": "Solid", "discovered": 1746},
    {"number": 47, "symbol": "Ag", "name": "Silver", "atomic_mass": 107.868, "category": "Transition Metal", "phase": "Solid", "discovered": -5000},
    {"number": 79, "symbol": "Au", "name": "Gold", "atomic_mass": 196.967, "category": "Transition Metal", "phase": "Solid", "discovered": -6000}
  ]
}