A proton should have what two characteristics when compared to the charge and the mass of an electron?

A proton possesses an opposite charge compared to an electron; while an electron has a negative charge, a proton carries a positive charge. This fundamental difference in charge is a key characteristic that distinguishes these two subatomic particles.

Additionally, protons have a significantly larger mass than electrons. The mass of a proton is approximately 1836 times greater than that of an electron. This considerable difference in mass plays a crucial role in the structure of atoms, as protons are found in the nucleus, contributing to the majority of the atomic mass, while electrons orbit around the nucleus.

This combination of having an opposite charge and a much larger mass accurately describes the relationship between protons and electrons, making it the correct choice.