11Na
Sodium
나트륨 · ナトリウム
Alkali metal
Atomic number11
ElementNa — Sodium
Atomic mass22.99
CategoryAlkali metal
Group1
Period3
Electron config[Ne] 3s1
Shells2,8,1
State (RT)Solid
Melting pt98°C
Boiling pt883°C
Electronegativity0.93
Discovered1807
Main usesTable salt, street lamps
2 · 8 · 1