A nitride ion has 7 protons, 8 neutrons, and 10 electrons. What is the overall charge on this ion? –3
–2
0
+3

-3

Explanation:

Given parameters:

Number of protons = 7

Number of neutrons = 8

Number of electrons  = 1 0

Unknown:

Overall charge on the nitride ion = ?

Solution:

The overall charge on an specie can be determined by;

  Charge = number of protons - number of electrons

  Charge  = 7 - 10

  Charge  = -3