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 |
|
