How many protons and electrons are in the ion N^3-?

The ion N^3-, or nitride ion, has a total of 7 protons and 10 electrons. Here’s the explanation:

Nitrogen, in its neutral state, has 7 protons in its nucleus, which is also equal to the number of electrons surrounding the nucleus. However, when nitrogen gains 3 additional electrons to form the nitride ion (N^3-), it ends up with 10 electrons in total. Thus, the nitride ion has:

• Protons: 7
• Electrons: 10

This gain of electrons is what gives the nitride ion its negative charge of 3.