Encyclopedia

Periodic Table of the Elements: Neptunium
Atomic Number:93
Atomic Symbol:Np
 Neptunium
Atomic Weight:237.0482
Electron
Configuration:
2 · 8 · 18
32 · 22
9 · 2
periodic table

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2007, Columbia University Press. All rights reserved.

More on Periodic Table of the Elements Neptunium from Fact Monster:

See more Encyclopedia articles on: Compounds and Elements