Protactinium

Physical properties


Physical state @ 20°C: Solid
Color: Silvery metallic [3]
Luster: Metallic [3]
Molecular weight (g/mol): 231.0359 [1]
Melting point (°C): List of melting points 1572 [1]
Boiling point (°C): List of boiling points 4722 (Approximately) [1]
Density (g/cm3): Density list 15.37 [1]
Superconduction temp. (K): 1.4 [3]