Li
Lithium
Element 3 · Alkali metal · Period 2, Group 1
Solid · Discovered 1817
Atomic Properties
| Atomic Number | 3 |
| Atomic Mass | 7u |
| Electron Configuration | [He]2s1 |
| Electronegativity | 0.98Pauling |
| Atomic Radius | 182pm |
| Ionization Energy | 5.392eV |
| Electron Affinity | 0.618eV |
| Oxidation States | +1 |
Physical Properties
| Standard State | Solid |
| Melting Point | 453.65K |
| Boiling Point | 1615K |
| Density | 0.534g/cm³ |
| Group Block | Alkali metal |
| Year Discovered | 1817 |