Question

The number of f-electrons in $H{o}^{2+}$ ion is ______.
$\text{ [At. no. of Ho }=67]$

Answer 1

Answer: 11

Electronic configuration of Ho is:
$[Xe]4f^{11}6s^2$
$\therefore H{o}^{2+}$ ion $\Rightarrow [Xe]4f^{11}$
$\therefore$ No. of f-electrons -11