which subatomic particle has the least mass? electron proton neutron the atom
which subatomic particle has the least mass? electron proton neutron the atom
Answer
Brief Explanations:
Protons and neutrons are in the nucleus and have relatively large masses. An atom is composed of a nucleus and electrons and has a much - larger mass than a single subatomic particle. Electrons have a very small mass compared to protons and neutrons.
Answer:
A. electron