Which vitamin when taking in excess or more likely to be stored in the body

If you’re talking about a literal vitamin then I’d say vitamin B-12 because this is usually stored int our liver for later reasonings.

If you include minerals as well, calcium is a main storage for your bones

The proton has a positive charge while the neutron has no charge they both make up the nucleus of the atom while the elections have a negative charge and surround the nucleus of the atom. the protons and electrons are used to calculate the atom's mass whereas the neutrons don't affect the mass