Atomic Structure Question 398

Question: What is the maximum number of electrons that can be accomodated in an atom in which the highest principal quantum number value is 4-

Options:

A) 10

B) 18

C) 36

D) 54

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Answer:

Correct Answer: C

Solution:

  • Energy of subshells follow the order $ 1s^{2},,2s^{2},2p^{6},4s^{2},3d^{10},4p^{6},5s,4d,5p,6s….. $ we can fill them by electrons up to 4p hence 36 electrons.


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