Atomic Number: 81
Atomic Weight: 204.3833
Melting Point: 577 K (304°C or 579°F)
Boiling Point: 1746 K (1473°C or 2683°F)
Density: 11.8 grams per cubic centimeter
Phase at Room Temperature: Solid
Element Classification: Metal
Period Number: 6 Group Number: 13 Group Name: none