Question

The electronic configuration of Cu2+ ion is

(a) [Ar] 4s1 3d8 (b) [Ar] 4s2 3d10 4p1 (c) [Ar] 4s13d10 (d) [Ar] 3d9​

Answer 1

Answer:

option (c) is the ans

because, the d block elements are transition elements so it can't form the electronic configuration d9 so,

hope this is helpful

Answer 2

Answer:

From which book you got this question.

Explanation:

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