The stability of atomic nuclei seem to be related to the ratio of
protons to electrons
neutrons to protons
isotopes to neutrons
neutrinos to gamma rays

Neutrons to protons. Neutrons and protons are tiny particles that are within the nucleus. Neutrons and protons make up the nucleus of the cell and the ratio of neutrons determine the stability of the atomic nuclei. The nucleus will become unstable if the ratio of neutrons to protons are not within the appropriate amount.

Engineers have contribute to society in many ways like making the technology we use today or any type of power energy material