List the subatomic particles in terms of their mass from least to greatest.


it's c. elements are placed in rows based on how may valencies electrons have.

i just got this problem. it's 90.3

The three subatomic particles are electrons, protons, and neutrons. Electrons have the least mass at 9.109 x 10-28 g. Neutrons have a mass of 1.675 x 10-24g. Protons have the greatest mass at 1.673 x 10-24g.

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