The mass of an electron is approximately equal to 1 over 1,836 of the mass of 1. a positron 2. a proton 3. an atom of helium 4.

Answer;

Proton

Explanation;

-Electrons are among the three sub-atomic particles, others being protons and neutrons, found in any given atom of an element. Electrons are found on the energy levels of the atom while both neutrons and protons are found in the nucleus.

-The nucleus of an atom accounts for the largest mass of an atom, while that of electrons in the energy level is negligible. Thus, the mass of an electron is said to be about 1 over 1,836 of the mass of proton.

-The weight of an electron is said to be about 1/1836 that of a hydrogen atom, that has a single electron and a single proton, therefore an electron is 1/1836th the size of a proton.

thats a little if u want the answer just look it up on google thats what i do haha : )

particle   p is an electron and particle q is a neutron