| Atomic number |
: |
58 |
|
| Atomic mass |
: |
140.12 g.mol-1 |
|
| Electronegativity according to Pauling |
: |
1.1 |
|
| Density |
: |
6.76 g.cm-3 at 20 °C |
|
| Melting point |
: |
799 °C |
|
| Boiling point |
: |
3426 °C |
|
| Vanderwaals radius |
: |
0.181 nm |
|
| Ionic radius |
: |
0.102 nm (+3) ; 0.087 nm (+4) |
|
| Isotopes |
: |
9 |
|
| Electronic shell |
: |
[ Xe ] 4f1 5d1 6s2 |
|
| Energy of first ionisation |
: |
526.8 kJ.mol-1 |
|
| Energy of second ionisation |
: |
1045 kJ.mol-1 |
|
| Energy of third ionisation |
: |
1945.6 kJ.mol-1 |
|
| Energy of fourth ionisation |
: |
3537 kJ.mol-1 |
|
| Standard Potential |
: |
- 2.48 V (Ce3+/ Ce) |
|
| Discovered by |
: |
W. von Hisinger in 1903 |
| |
| Atomic Structure |
|
Uses (heat-resistant alloys) |
|
|
|
