Periodic Table of the Elements: Lanthanum

Periodic Table of the Elements: Lanthanum

Atomic Number: 57
Atomic Symbol: La
  Lanthanum
Atomic Weight: 138.90547
ElectronConfiguration: 2 · 8 · 1818 · 9 · 2

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

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