The Reactivity Of An Atom Arises From

Does the nuclear reaction come from ____? 3

I know the answer is b. Non-paired electrons exist in valence s but I need an explanation why or w ... can anyone help me?

When atoms react, they do so to reach the lowest energy, which is the most stable. Spoken electrons overlap in such a way that the energy is reduced as much as possible. With this energy, languages created the greatest stability. What he answers is not just a story, it depends on which race responds to whom. The efficient atomic charge of an atom affects the energy of electrons within certain limits. Therefore, if the reaction type has the same energy boundary electrons, they can rapidly reduce the energy / stability, which can cause them to produce more reactions.

Presence of a non-paired electron in s valence.