Neptunium
- Number:
- 93
- Atomic Weight:
- 237.0
- Symbol:
- Np
- Melting Point:
- 640° C /1,184° F
- Boiling Point:
- 3,902° C /7,055.6° F
- Density:
- 20.2 g/mL
- Group:
- Actinoids
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