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Dec 9, 2009
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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.

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