Neptunium (Np)
Atomic number:
93
Symbol:
Np
Atomic weight:
237
Boiling Point (°C):
--
Melting Point (°C):
637
Density:
19.5
heatVapor:
94.3
heatFusion:
--
Electrical Conductivity:
--
Thermal Conductivity:
--
Specific Heat Capacity:
--
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