Question

i which of the following has more electron than
Proton
al Mg+2
b) Al+2
c) o-2 d) H+1​

Answer 1

Answer:

C) o-2

Explanation:

O-2 means two protons are loosed thus it becomes anion ( neg. ion), so no. of protons are less than electrons.

Answer 2

Answer:

O⁻²

Explanation:

It's because Oxygen is electronegative among all the other ions because

1. It's a non metal and has gained electrons, due to which it has more electrons than protons.

2. The other ions are Metals (exception Hydrogen)  have lost electrons, due to which it is electropositive and has more protons than electrons.