Is there any answers to choose from?
<span />
A. an ion
The atom gains a net electrical charge if the number of protons and electrons are not equal which makes it an ion.
I believe that the best answer among the choices provided by the question is <span>It is the difference between reactant energy and maximum energy.
</span>
Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
6.7 mass because 1 atom equals 6.3 but if u add 4 it would be 6.7
