Chemistry, asked by Venunani5408, 1 year ago

Why copper has an electronic configuration Ar 4s^1 3d^10 instead of 4s^2 3d^9

Answers

Answered by Arceus11

A full, or a half filled subshell is always more stable than an incomplete one. Copper has enough electrons to fill the d subshell. Hence it excited one electron from the s to the d and becomes more stable.

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