Make your own free website on Tripod.com
Neptunium
(Synthetically Prepared)

Symbol: Np
Atomic Mass/Weight: 237.0482 AMU
Atomic Number: 93
Oxidation State (Bold Most Stable):  +5,+6,+4,+3
Melting Point: 910 K
Boiling Point: N/A
# of Isotopes: N/A
Electron Configuration: [Rn] 5f4 6d1 7s2
Lewis Dot Diagram:
Neptunium - Lewis Dot Diagram