Question

What are anions?

Answer 1

anions are negative charged ions. Ions are atoms which have more electrons than the number of protons , creating a net negative charge.

Answer 2

So if the atoms have the same number of electrons, than they are known as anions?
E.g:
Particle M - 18 electrons, 19 protons, 20 neutrons
Particle N - 18 electrons, 20 protons , 20 neutrons
Particles M and N are best described as?