Electrons are Negatively Charged
Electrons are charged particles, and all electrons have the same charge.
When measured in Coulombs (the SI unit for charge), the charge of one electron is -1.602 x 10^-19 Coulombs. We say that this is a charge of -1. Thus, we say that an electron has a charge of -1. The negative charge of one electron exactly cancels out the positive charge of one proton. In other words, if you place an electron together with a proton, the total charge of the two particles will be ZERO.
When measured in Coulombs (the SI unit for charge), the charge of one electron is -1.602 x 10^-19 Coulombs. We say that this is a charge of -1. Thus, we say that an electron has a charge of -1. The negative charge of one electron exactly cancels out the positive charge of one proton. In other words, if you place an electron together with a proton, the total charge of the two particles will be ZERO.