What does the nucleus of an atom want to do to its own electrons?

It wants to keep his electrons near to it

Explanation:

An atom is the smallest particle of an element that can take part in a chemical reaction.An atom is made up of energy levels that contain electrons which are negatively charged and the nucleus which contains neutrons and protons that are negatively charged.Due the positive charge of the nucleus of an atom, an atom always wants to attract its electrons and keep them near it. However, it weakly attracts the other electrons of a nearby atom.

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

257 grams h2o i think