Sodium is an alkali metal from the periodic table. It is a soft, silvery-white metal that reacts quickly with water and oxygen. Sodium is an essential element for life and is found in many common foods. It is also used in a wide range of industrial applications, including the production of sodium hydroxide, sodium chloride and sodium carbonate.
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| Atomic number | 11 |
| Group | IA |
| Period | 3 |
| Mass | 22.989769 |
| Latin name | Natrium |
| Electron configuration | [Ne]3s |
| Oxidation state | 0, 1 |