Atomic Structure Question 88
In a potassium atom, electronic energy levels are in the following order: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹ [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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