Atomic Structure Question 222

Question: Chromium has the electronic configuration $ 4s^{1}3d^{5} $ rather than $ 4s^{2}3d^{4} $ because

Options:

A) $ 4s $ and $ 3d $ have the same energy

B) $ 4s $ has a higher energy than $ 3d $

C) $ 4s^{1} $ is more stable than $ 4s^{2} $

D) $ 4s^{1}3d^{5} $ half-filled is more stable than $ 4s^{2}3d^{4} $

Show Answer

Answer:

Correct Answer: D

Solution:

$ Cr $ has $ [ Ar ],4s^{1}3d^{5} $ electronic configuration because half filled orbital are more stable than other orbitals.



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