Question: are electrons heavier than protons?
Answer: Short answer, yes, a proton is heavier than and electron. A protons mass is approximatly, 1.673 x 10^-27 kg where an electron's mass is approximatly 9.110 x 10^-31 kg. ... A proton has a mass of 1.007276u and an electron has a mass of 0.000549u which is approximately 1834.7 times smaller than a proton.