Atomic Structure Question 269

Question: The electronic configuration (outermost) of $ M{n^{+2}} $ ion (atomic number of $ Mn=25 $ ) in its ground state is

Options:

A) $ 3d^{5},4s^{0} $

B) $ 3d^{4},4s^{1} $

C) $ 3d^{3},4s^{2} $

D) $ 3d^{2},4s^{2}4p^{2} $

Show Answer

Answer:

Correct Answer: A

Solution:

$ _{25}Mn=[Ar],3d^{5}4s^{2} $

$ M{n^{2+}}=[Ar]3d^{5},4s^{0} $



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