Which of the following element will have the same number of electrons in 's' as well as 'd'-subs...

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Which of the following element will have the same number of electrons in 's' as well as 'd'-subshell in the ground state electronic configuration ?
(A) \( \mathrm{Zn}(\mathrm{Z}=30) \)
(B) \( \mathrm{Ni}(\mathrm{Z}=28) \)
(C) \( \mathrm{Cr}(\mathrm{Z}=24) \)
(D) \( \mathrm{Cu}(\mathrm{Z}=29) \)
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