The number of neutrons in dipositive zinc ion with mass number `70` is.

Options

A. `34`
B. `40`
C. `36`
D. `38`

Answer

B

Explanation

`ngtl,m=-l` to `+l`
`{:(n,,l,s,),(3,,2,1//2,):}`
The value of cm is wrong
`l=2, m = - 2, -1, 0, +1, +2`