Na
11 alkali metal Generated with AI
Sodium
Symbol Na
Atomic Mass 22.989769282
Sodium /ˈsoʊdiəm/ is a chemical element with symbol Na (from Ancient Greek Νάτριο) and atomic number 11. It is a soft, silver-white, highly reactive metal. In the Periodic table it is in column 1 (alkali metals), and shares with the other six elements in that column that it has a single electron in its outer shell, which it readily donates, creating a positively charged atom - a cation.
Properties
- Phase: Solid
- Density: 0.968 g/cm³
- Melting Point: 370.944 K
- Boiling Point: 1156.09 K