Atomic Number: 63
Atomic Weight: 151.964
Melting Point: 1095 K (822°C or 1512°F)
Boiling Point: 1802 K (1529°C or 2784°F)
Density: 5.24 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Metal
Period Number: 6 Group Number: none Group Name: Lanthanide