A) \[Cu\to C{{u}^{+}}\]
B) \[Br\to B{{r}^{-}}\]
C) \[~I\to {{I}^{-}}\]
D) \[Li\to L{{i}^{-}}\]
Correct Answer: A
Solution :
[a] Cu has completely filled d-orbital, so highest energy is absorbed when it converts to\[C{{u}^{+}}\] ion.
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