Of the following, the smallest and lightest subatomic particle is the .

Question

Quizplus · Accepted Answer

The electron is the smallest and lightest subatomic particle. It has a negative charge and orbits the nucleus of an atom. Protons and neutrons are much larger and heavier than electrons, and the nucleus itself (which is composed of protons and neutrons) is also relatively large and heavy. Alpha particles are composed of two protons and two neutrons, so they are much larger and heavier than electrons as well.

Of the Following, the Smallest and Lightest Subatomic Particle Is