Atomic Structure Question 123
Electronic configuration of $ Sc^{22} $ is
Options:
A) $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{2}3d^{1} $
B) $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}4s^{1}3d^{2} $
C) $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{3}4s^{0} $
D) $ 1s^{2}2s^{2}2p^{6}3s^{2}3p^{2}4s^{2}3d^{2} $
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Answer:
Correct Answer: A
Solution:
According to Aufbau’s rule.