D-And F-Block Elements Ques 320

Question: Which of the following general configuration of outermost shell represents chromium element

[Cr’s atomic number = 24] [CBSE PMT 1991; MP PMT 1992, 2001; RPET/PMT 1999]

Options:

A) $ d^{5}s^{1} $

B) $ d^{6}s^{0} $

C) $ d^{4}s^{2} $

D) $ d^{3}s^{2} $

Show Answer

Answer:

Correct Answer: A

Solution:

This configuration is more stable because of symmetrical distribution of e- and exchange energy.



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