What is the charge of a proton?

The charge of a proton is positive. Protons are subatomic particles found in the nucleus of an atom, and they carry a positive electrical charge with a value of +1 elementary charge, which is approximately +1.6 x 10^-19 coulombs. This positive charge plays a crucial role in the structure of atoms, as it helps to balance the negative charge of electrons, which orbit around the nucleus. The interaction between the positive charge of protons and the negative charge of electrons is what holds atoms together, making it fundamental to the understanding of chemistry and physics.

The classification of protons as positively charged is also vital in various applications, such as in understanding atomic behavior, chemical reactions, and the principles of nuclear physics. The concept of charge is essential in broader contexts including electricity, magnetism, and elementary particle physics, allowing for a better grasp of the interactions at the subatomic level.