Y
Yttrium
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Y |
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Yttrium |
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| Atomic number | 39 |
| Atomic weight | 88.9059 |
| Orbital electronic configuration | (Kr)4d15s2 |
| First ionization energy (eV) | 6.38 |
| Second ionization energy (eV) | 12.23 |
| Third ionization energy (eV) | 20.5 |
| Electronegativity (Pauling) | 1.22 |
| Atomic radius (Å) | 2.27 |
| Bonding radius (Å) | 1.62 |
| Oxidation states | 3 |
Properties |
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| Density (g/ml) | 4.5 |
| Melting point (K) | 1799 |
| Boiling point (K) | 3611 |
| Heat of vaporization (kJ/mol) | 363.0 |
| Heat of fusion (kJ/mol) | 11.40 |
| Specific heat capacity (Jg-1K-1) | 0.30 |
| Crystal structure | hexagonal |