Neptunium

Physical properties


Physical state @ 20°C: Solid
Color: Silvery [3]
Molecular weight (g/mol): 237.0482 [1]
Melting point (°C): List of melting points 644 [1]
Boiling point (°C): List of boiling points 3902 (Approximately) [1]
Density (g/cm3): Density list α-form: 20.45 [3,4]
β-form: 19.36 [3,4]
γ-form: 18.0 [3]
Elastic properties:
Young's modulus (GPa):
Bulk modulus (GPa):

80 [2]
118 [2]