Which of the following particles has the least mass? (2021) 2021

Which of the following particles has the least mass? (2021) 2021

Step 1: Understand the three particles we are comparing: electrons, protons, and neutrons.
Step 2: Know that protons and neutrons are found in the nucleus of an atom and have a similar mass, which is much larger than that of an electron.
Step 3: Learn that an electron is a subatomic particle that orbits around the nucleus and has a very small mass.
Step 4: Compare the masses: Protons and neutrons each have a mass of about 1 atomic mass unit (amu), while an electron has a mass of about 1/1836 amu.
Step 5: Conclude that since the mass of the electron is much smaller than that of protons and neutrons, the electron has the least mass.

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