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Periodic Table of the Elements: Thulium

Periodic Table of the Elements: Thulium

Atomic Number: 69
Atomic Symbol: Tm
  Thulium
Atomic Weight: 168.93421
ElectronConfiguration: 2 · 8 · 1831 · 8 · 2

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

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