____ has a negative charge and a mass about 1800 times small than a proton.

Question

Quizplus · Accepted Answer

A neutron has no charge, so it cannot be the answer. A molecule is a group of atoms and can be charged, but the question refers to a single particle. A nucleus is a group of particles and can be charged, but the question refers to a single particle. An isotope is a variant of an element with a different number of neutrons but the same number of protons, so it cannot be the answer. Therefore, the only option left is an electron, which has a negative charge and a mass approximately 1/1800th that of a proton. The particle described is an electron, which has a negative charge and a much smaller mass than a proton. A neutron has no charge and a mass similar to a proton, a molecule is not a particle but a combination of atoms, a nucleus is the core of an atom made up of protons and neutrons, and an isotope refers to different forms of an element with different numbers of neutrons in their nuclei.

____ Has a Negative Charge and a Mass About 1800