Question

What part of an atom is involved in a chemical reaction?

Answer 1

I think all the parts are important

Answer 2

Answer:

The electron.

Explanation:

A chemical bond results in the sharing of electron density between two atoms. The more complete this sharing of electron density is the stronger the bond. A single sigma bond is stronger than a single pi bond but not stronger than the resulting double or triple bond. This is because in a sigma bond the electron orbitals directly overlap making the electron density sharing more complete.

By sharing electron density atoms can achieve greater stability. The chemical bonds almost always result in a an electron configuration that is more stable than the electron configuration before the chemical bonding occurred.