Terbium
Atomic number:
65
Atomic weight:
158.92534
Shells:
2,8,18,27,8,2
Orbitals:
[Xe] 4f9 6s2
Melting point:
1356°C
Boiling point:
3230°C
Covalent radius:
1.59
Å
Atomic volume:
19.2
cm³/mol
Atomic radius:
2.51
Å
Ionic radius:
1.18 (+3)
Å
Electronegativity:
1.2
Oxidation states:
(3),4
1st ionization pot.:
5.8639
V
2nd ionization pot.:
11.525
V
3rd ionization pot.:
21.91
V
Specific heat:
0.18
J/gK
Heat of fusion:
10.80
kJ/mol
Heat of vapor.:
33.090
kJ/mol
Thermal conduct.:
0.111
W/cmK
Electrical conduct.:
0.00889
10^6/cm ohm
Density:
8.27
g/cm³
Valence:
3,4
