Li
Lithium
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Li |
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Lithium |
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| Atomic number | 3 |
| Atomic weight | 6.941 |
| Orbital electronic configuration | (He)2s1 |
| First ionization energy (eV) | 5.392 |
| Second ionization energy (eV) | 75.638 |
| Third ionization energy (eV) | 122.419 |
| Electron affinity (eV) | 0.6 |
| Electronegativity | .98 |
| Atomic radius (Å) | 2.05 |
| Covalent radius (Å) | 1.23 |
| Oxidation states | 1 |
Properties |
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| Density at 300K (g/ml) | 0.53 |
| Melting point (K) | 453.7 |
| Boiling point (K) | 1615 |
| Heat of vaporization (kJ/mol) | 145.920 |
| Heat of fusion (kJ/mol) | 3.00 |
| Specific heat capacity (Jg-1K-1) | 3.6 |
| Crystal structure | cubic, body centered |