Chemistry Class 12

Electron configuration shortcuts

Why do we use noble gas notation in electron configurations?

uniboardhub
Asked on 01/11/2025 411 views
1 answers 50 votes

1 Answers

uniboardhub
4 months ago

Writing configurations for heavy elements is lengthy. Noble gas notation uses the previous noble gas as a shortcut, e.g., Fe = [Ar] 3d⁶ 4s² instead of writing all 26 electrons explicitly.

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