What is the charge of a proton in coulombs?


Protons are the positively charged particles which are present in the nucleus of a hydrogen atom. The mass of a proton is 1.6726219 × 10-27 kilograms.

Mass of proton

The mass of a proton is equal to that of the hydrogen atom. A hydrogen atom consists of one electron and one proton. As the mass of an electron is considered to be negligible therefore it can be said that the mass of a hydrogen atom is equal to the mass of a proton. The mass of a proton is 1840 times the mass of an electron.

Mass of proton = 1.676 × 10-27 kg = 1.676 × 10-24 g = 1.6726219 × 10-27 kg

Charge of proton

The charge of a proton is equal to and opposite to that of an electron. Thus, it has a unit positive charge.

Charge on a proton = + 1.602 × 10-19 coulombs

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