Anitride ion had 7 protons 8 neutrons and 10 electrons. what is the overall charge in this ion?
a)-3
b)-2
c)0
d)+3

It would be>>A>-3<<
since it has more electrons(negative)

The correct answer is A. -3

Explanation.

Protons and electrons have same magnitude but opposite charges. If number of electrons and protons are equal in an atom, then such atom will be neutral due cancellation of opposite charges.As in this case of nitride ion, protons are 7 but electrons are 10, it means 3 electrons are greater than protons tin numbers, so there will be negative charge (-3).

Note

Neutron are neutral.

I'm not sure but i will try to find out