Question

Write tha electronic configuration of 24cr and 29cu

Answer 1

Answer:

Cu = 29 = 1s² 2s² 2p⁶ 3s² 4p⁶ 4s¹ 3d¹⁰ These electronic configuration are exceptional because electrons entered in 3-d orbitals without filling the 4s orbitals complete.

Explanation:

The electronic configuration of 24cr :

[Ar] 3d⁵ 4s¹

Chromium/Electron configuration

The electronic configuration of 29cu :

[Ar] 3d¹⁰ 4s¹

Copper/Electron configuration