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

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