What are the lightest or least massive of the fundamental atomic particles?
A)protons
B)neutrons
C)uranium nuclei
D)electrons

Question

Quizplus · Accepted Answer

Electrons are the lightest of the fundamental atomic particles with a mass of approximately 9.11 x 10^-31 kg. Protons and neutrons have much greater mass, and uranium nuclei are composed of many protons and neutrons, which make them even more massive.

What Are the Lightest or Least Massive of the Fundamental