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Out of electrons, protons, and neutrons, neutrons are the heaviest subatomic particle, with a mass of about 1838 times that of the electron.

(If you are asking about electrons, up quarks, and down quarks, then electrons still aren't the heaviest Down quarks are the heaviest, with almost 10 times the mass of an electron.)

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11y ago
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9y ago

Because the mass of the electron is approx. 1/1836 from thae mass of neutron or proton.

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Q: Why electron is lightest subatomic particle?
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Continue Learning about Natural Sciences

What subatomic particle has the less mass?

In the atom the electron is the lightest.


What subatomic particle Has the smallest relative mass?

In the atom the electron is the lightest.


Is electron a atom?

No, an electron is a subatomic particle. Electrons are a part of atoms.


What subatomic particle is the least and most massive and which subatomic particle is respectively?

least - electron most - the top quark


What subatomic particle varies in the atoms?

The subatomic particles are: neutron, proton and electron.