Question

How is the mass of an electron related to the mass of protons and neutrons?


Select one:


a. the mass of an electron is so small compared to that of protons and neutrons, it is basically considered to be zero

b. the mass of protons is much higher than that of electrons, but the mass of neutrons is much lower than that of electrons

c. protons and electrons are of the same mass, but neutrons are so much lower in mass they are said to have zero mass

d. protons, neutrons & electrons all have very similar masses, since they are all subatomic particles