What are things that tend to gain electrons and become negative

Explanation:

This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond. An atom that loses one or more valence electrons to become a positively charged ion is known as a cation, while an atom that gains electrons and becomes negatively charged is known as an anion.

It is called instincts it is the inherent behavior of humans or animals. It is a settled activity design that is unlearned. Creatures are conceived with specific senses which are regular to each one of those in their breed. Some instinctual practices require a specific measure of development before they start. The clearest one is the sense to mate and proliferate.