Physical properties |
Phase |
solid |
Density (near r.t.) |
10.49 g/cm3 |
Liquid density at m.p. |
9.320 g/cm3 |
Melting point |
1234.93 K (961.78°C, 1763.2°F) |
Boiling point |
2435 K (2162°C, 3924°F) |
Heat of fusion |
11.28 kJ/mol |
Heat of vaporization |
258 kJ/mol |
Heat capacity |
(25°C) 25.350 J/(mol K) |
|
Atomic Properties |
Crystal structure |
cubic face centered |
Oxidation states |
1 (amphoteric oxide) |
Electronegativity |
1.93 (Pauling scale) |
Ionization energies |
|
1st: |
731.0 kJ/mol |
2nd: |
2070 kJ/mol |
3rd: |
3361 kJ/mol |
Atomic radius |
160 pm |
Atomic radius (calc.) |
165 pm |
Covalent radius |
153 pm |
Van der Waals radius |
172 pm |
|