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.
