What is the charge of an electron?

a.) positive one
b.) positive two
c.) negative one
d.) negative two

The correct answer is C. An electron has a charge of -1 and a smaller mass than a proton. Proton has the same mass with the neutron. The ratio between the mass of a proton and an electron is about 2000. An electron has an equal value but negative charge with the proton.

the answer your looking for is c).