The mass of an electron is...
A. equal to the mass of the proton and the neutron
B. not significant to the overall mass of the atom
C. higher than the mass of the proton or the neutron

Respuesta :

AL2006
The mass of an electron is not significant to the overall mass of the atom. (B)

It takes roughly 1,850 electrons to equal the mass of ONE proton or neutron,
but the most complex atom has only around 100 of them.