Periodic table of elements

65 - Terbium [Tb]

65: Terbium - Terbium [Tb]
Group: 3
Period: 6
Atomic number: 65
Atomic mass: 158.92535
Configuration: [Xe] 4f96s2
Atomic radius: 225 pm
Covalent radius: 194 pm
Electron affinity: 50 eV
Ionization energy: 5.8638 eV
Electronic term: 6H15/2
Mass fraction in the earth crust: 0.00000093
Mass fraction in the earth space: 0.0000000005
Electronegativity: 1.2

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