Answer
Please see the work below.
Work Step by Step
Let us suppose that $X$ be the number of protons so $1.30x$ is the no. of neutrons. Mass number is 62, hence $x+1.30x=85=2.30x$
$\implies x=36.95$
This shows that the element is Rubidium and the ion has $+1$ charge and there are 36 electrons.