Question

Which have the same number of s-electrons as the d-electrons in $F{e}^{2+}$?

• A. $Li$
• B. $Na$
• C. $N$
• D. $P$

Answer 1

Answer: (D)

$P\left(1s^2,2s^{2}2p^6,3s^{2}3p^3\right)$ has 6 electrons in s-subshells as in d-shell of $F{e}^{2+}$