H
Hydrogen
1
Atomic Number: 1
Atomic mass: 1.00794
Ionization energy: 1312
Electronaffinity: -73
Covalent radius: 37
Calculated radius: 53
Empirical radius: 25
Vanderwaals radius: 120
Electronegativity: 2.2
Density: 0.08988
Oxidation states: -1, 1
Melting point: 14
Boiling point: 20
Electron configuration: 1s1
Element group: 1
Element period: 1

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