Atomic Structure Question 259

Question: In a potassium atom, electronic energy levels are in the following order [EAMCET 1979; DPMT 1991]

Options:

A) $ 4s>3d $

B) $ 4s>4p $

C) $ 4s<3d $

D) $ 4s<3p $

Show Answer

Answer:

Correct Answer: C

Solution:

According to Aufbau-s principle.



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