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Which subatomic particle has the least mass?

When you refer to subatomic particles, they are the electron, the proton and the neutron, of which the electron has the lowest mass.

Keeping this in view, which particle has the least mass?

If by "biggest" and "smallest", you mean mass (which is a measure of how much matter is there), then the smallest is the hydrogen atom with one proton and one electron. Since electrons are about 2000 times less massive than protons (and neutrons), then the mass of an atom is mostly from the protons and neutrons.

Subsequently, question is, which subatomic particle is the smallest? Quarks represent the smallest known subatomic particles. These building blocks of matter are considered the new elementary particles, replacing protons, neutrons and electrons as the fundamental particles of the universe.

Also asked, which subatomic particle has the most mass?

neutron

What is the smallest mass in an atom?

The atom with the smallest mass is the hydrogen atom; its mass is about 10-27 kg. The masses of other atoms go up to about 200 times this. The nucleus of an atom is about 10-15 m in size; this means it is about 10-5 (or 1/100,000) of the size of the whole atom.

Similar Question and The Answer

Which particle has a negative charge?

What is the mass of an alpha particle?

What percentage of the atom is empty space?

Do electrons have the least mass?

Which is more mass proton or neutron?

What is atomic mass number?

What is smaller than a quark?

What is a negatively charged subatomic particle?

Why do atoms have no overall charge?

Are photons smaller than atoms?

What is the center of an atom called?

What is an antiquark?

What subatomic particle has a positive charge?

Why is the mass number always a whole number?

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