What is the mass of each of the 3 subatomic particles?

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What subatomic particles contribute to mass?

Atoms are made up of particles called protons, neutrons, and electrons, which are responsible for the mass and charge of atoms.

What is the massive subatomic particle?

Protons are among the (most, least) massive subatomic particles, and they are found (inside, outside) the nucleus. Electrons are among the (most, least) massive subatomic particles, and they are found (inside, outside) the nucleus. Electrons account for the (majority, minority) of the (mass, volume) of an atom.

Why is an atom electrically neutral?

Electrons have electric charge of -1 and the number of electrons in an atom is equal to the number of protons. Heavier atoms tend to have more neutrons than protons, but the number of electrons in an atom is always equal to the number of protons. So an atom as a whole is electrically neutral.

Which sub atomic particle has the most mass?

The subatomic particles that have most of the mass in the particle are the positive proton, and the neutral neutron.

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.

How do you determine the number of subatomic particles?

To calculate the numbers of subatomic particles in an atom, use its atomic number and mass number: number of protons = atomic number. number of electrons = atomic number. number of neutrons = mass number – atomic number.

What is unit to measure mass of subatomic particles?

Air Pressure – Force that air exerts over a certain area due to it’s weight or motion. Amu – atomic mass unit, the unit used to measure the masses of subatomic particles; a proton has a mass of 1 amu.