What two subatomic particles have the greatest mass?

a
protons and electrons
b
neutrons and electrons
c
protons and neutrons

c

protons and neutrons

The correct answer is option c: protons and neutrons. Protons and neutrons are subatomic particles found in the nucleus of an atom and both have a greater mass compared to electrons. Protons have a relative mass of approximately 1 atomic mass unit (AMU), while neutrons have a relative mass of approximately 1 AMU as well. Electrons, on the other hand, have a very small mass, approximately 1/1836 AMU.