Sodium
Chemical element
Sodium is a chemical element; it has symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an alkali metal, being in group 1 of the periodic table. Its only stable isotope is ²³Na. The free metal does not... Wikipedia
Symbol: Na
Atomic mass: 22.989769 u
Atomic number: 11
Electron configuration: [Ne] 3s¹
Boiling point: 1,621°F (882.8°C)
Melting point: 208°F (97.79°C)
Electronegativity: 0.93