Tb
Terbium
65
Atomic Number: 65
Atomic mass: 158.925352
Ionization energy: 566
Electronaffinity: -50
Covalent radius:
Calculated radius: 225
Empirical radius: 175
Vanderwaals radius:
Electronegativity: 1.2
Density: 8.22
Oxidation states: 1, 3, 4
Melting point: 1629
Boiling point: 3503
Electron configuration: [Xe] 4f9 6s2
Element group: 12
Element period: 8

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