What is the charge of a proton?

The proton carries a positive electric charge of +1e, where e is the elementary charge. This charge is equal in magnitude but opposite in sign to the charge of an electron, which is -1e. In the SI system of units, the value of the elementary charge is approximately 1.602 × 10−19 coulombs. The positive charge of the proton is a fundamental property and plays a crucial role in the behavior of atoms and molecules.