Periodic Table of the Elements: Thorium — Infoplease.com

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Periodic Table of the Elements: Thorium
Atomic Number:	90
Atomic Symbol:	Th
	Thorium
Atomic Weight:	232.0381
Electron Configuration:	2 · 8 · 18 32 · 18 10 · 2

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

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