Atomic Structure Question 282
Question: What is the electronic configuration of $ C{u^{2+}}(Z=29) $ of least position
Options:
A) $ [Ar],4s^{1}3d^{8} $
B) $ [Ar],4s^{2}3d^{10}4p^{1} $
C) $ [Ar],4s^{1}3d^{10} $
D) $ [Ar],3d^{9} $
Show Answer
Answer:
Correct Answer: D
Solution:
$ _{29}Cu=[Ar],3d^{10}4s^{1},,C{u^{2+}}=[Ar],3d^{9}.4s^{0} $ . Ground state of $ Cu^{29}=1s^{2}2s^{2}2p^{6}3s^{2}3p^{6}3d^{10}4s^{1} $
$ C{u^{2+}}=1s^{2},2s^{2}2p^{6},3s^{2}3p^{6}3d^{9} $ .
