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The lightest subatomic particle is the electron.

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10y ago

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What two particle's account for almost all of the mass of an atom?

Protons and neutrons.


What is a subatomic particles with almost no mass?

The electron is the lightest particle in the atom.


Elementary particle that carries a negative charge and almost no mass?

A electron is a subatomic particle outside the nucleus carrying a negative charge and very little mass. Other mass is negligible mass or a negative charge.


What is the relationship between the acceleration of a particle the force that acts on the particle and the mass of the particle?

Acceleration = force/mass


How do the mass and size of an alpha particle compare with mass and size of beta particle?

The mass and size of an alpha particle compare with the masa and size of beta particle in the sense that the alpha particle is significantly larger in both size and mass that the beta and gamma particles. This is why it is called the alpha particle.


What is the atomic mass-?

The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.


What is the name for a nuclear particle that has about the same mass as a proton but with no electrical charge?

The nuclear particle that has about the same mass as a proton but no electrical charge is called a neutron. Neutrons are found in the nucleus of an atom along with protons and contribute to the atomic mass of the atom.


The mass of a neutron is nearly equal to the mass of what other subatomic particle?

No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.No, an alpha particle is the nucleus of a normal helium atom - 2 protons + 2 neutrons. Therefore, an alpha particle has approximately 4 times the mass of a proton or neutron.


Is alpha particle is heavy particle?

An alpha particle is a helium-4 nucleus. It has a mass of about 4 atomic mass units.


What is the smallest part of the atom that has almost no mass?

The smallest part of an atom would be a quark. Quarks are either up or down quarks, and have virtually no mass. Neutrinos have even less mass, but are not part of an atom.


What particle have mass of lamu?

The tau neutrino has mass and is denoted with the symbol μ.


A particle that has a mass of 1 and a charge of 1 plus is?

A particle that has a mass of 1 and a charge of 1 plus is a proton.