Answer
Please see the work below.
Work Step by Step
Let us suppose that $X$ be the number of protons so $1.21x$ is the no. of neutrons. Mass number is 62, hence $x+1.21x=62=2.21x$
$\implies x=28.054$
This shows that the element is nickle and the ion has $+2$ charge and there are 26 electrons.