Atomic Structure Question 255

Question: In a multi-electron atom, which of the following orbitals described by the three quantum members will have the same energy in the absence of magnetic and electric fields [AIEEE 2005] (1) $ n=1,,l=0,,m=0 $ (2) $ n=2,,l=0,,m=0 $ (3) $ n=2,,l=1,,m=1 $ (4) $ n=3,,l=2,,m=0 $ (5) $ n=3,,l=2,,m=0 $

Options:

A) (1) and (2)

B) (2) and (3)

C) (3) and (4)

D) (4) and (5)

Show Answer

Answer:

Correct Answer: D

Solution:

(4) and (5) belong to $ d $ -orbital which are of same energy.



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