Atomic Structure Question 272

Question: The order of filling of electrons in the orbitals of an atom will be [CBSE PMT 1991]

Options:

A) $ 3d,,4s,,4p,,4d,,5s $

B) $ 4s,,3d,,4p,,5s,,4d $

C) $ 5s,,4p,,3d,,4d,,5s $

D) $ 3d,,4p,,4s,,4d,,5s $

Show Answer

Answer:

Correct Answer: B

Solution:

As per Aufbau principle.



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