Protons are positively charged particles that are found in the nucleus of atoms. They are stable particles and cannot be directly "filled" with electricity. However, if you were to introduce additional electric charge to a proton, it would result in an overall increase in the positive charge of the particle.
Since protons are already positively charged, adding more positive charge would cause an increase in their electric potential energy. This would result in the protons repelling each other more strongly due to the electromagnetic force. The increased repulsion would lead to a destabilization of atomic nuclei, as the repulsive forces among protons overcome the strong nuclear force that binds the nucleus together.
If the added electric charge is significant enough, it could lead to nuclear reactions or even nuclear disintegration, where the nucleus may break apart into smaller fragments or emit radiation. These processes can have various consequences depending on the specific conditions and the amount of charge added.
It's important to note that manipulating individual protons in this manner is not currently feasible in everyday situations. The behavior of particles at such high energies and extreme conditions is typically studied in the field of particle physics using specialized equipment like particle accelerators and detectors.