Similar physical properties:
LOW melting points and LOW boiling points
Low compared to other metals:
From solid to liquid From
liquid to gas
–Lithium 180 0C 1342 0C
–Sodium 98 0C 883 0C
–Potassium 63 0C 760 0C
Whereas,
–Copper 1100 0C 2567 0C
–Iron 1500 0C 2750 0C