Question

an ion has a charge of 3+.if this ion has 8 protons, how moany electrons does it have? A 3 B 5 C 7 D 8 E 11

Answer 1

The answer is B

Step-by-step explanation:

3+ means there is 3 more protons than electrons.

So electron need 3 more (-ve) charge in order to have the same charge as proton to become neutral atom (no charge).

e + 3 = 8

e = 8 - 3

= 5