Sodium (Na), element 11 – Learn Acer periodic table

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.

Symbol Na. Atomic mass 22.989769282 u. Group 1, period 3. Electron configuration [Ne] 3s1. Electrons per shell 2, 8, 1. State at room temperature: Solid. Melting point 97.8 °C, boiling point 882.9 °C. Discovered by Humphry Davy.

Element data from Wikipedia, CC BY-SA 3.0.

Sodium (Na), element 11 – Learn Acer periodic table

Sodium

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