Atomic Number: 11

Atomic Weight: 22.98976928

Melting Point: 370.95 K (97.80°C or 208.04°F)

Boiling Point: 1156 K (883°C or 1621°F)

Density: 0.97 grams per cubic centimeter

Phase at Room Temperature: Solid

Element Classification: Metal

Period Number: 3    

Group Number: 1    

Group Name: Alkali Metal