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electrons
The largest subatomic particle (by mass) is the proton. The mass of subatomic particles is measured in atomic mass units (amu). The proton has a mass of 1.007 amu, the neutron has a mass of 1 amu, and the electron has a mass of .0005 amu.
Particles have mass because they are matter, and matter is anything that has mass and takes up space. The wave packet that defines the particle is of such high frequency that its energy has a gravitational vector.
A particle is of indeterminate size. Large 'particles' may be suspended in something like water and cause that substance to look cloudy. Smaller particles may be the subatomic particles like protons, neutrons, and electrons that make up atoms. Different atoms have different numbers of these particles, expecially protons which determine which atom it is.
Virtually all of the mass of an atom is carried by the proton and the neutron. The electron has very, very little mass relative to these two particles.
Alpha particles are positively charged helium nuclei while beta particle are negatively charged electrons . Alpha particle have 4u mass while beta particles have zero mass.
These particles are protons and neutrons.
electrons
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.
It depends upon the mass of the particles also. Assuming equal mass, then the slower moving particle gains some energy, and the faster moving particle loses energy. However, if the slower moving particle had greater mass, it could transfer energy to the faster moving particle.
No such particle exists. All particles with charge also have mass -- no exceptions. Every particle with zero mass also has zero charge -- no exceptions.
A neutron. It is one of the particles in the nucleus and has no charge
The largest subatomic particle (by mass) is the proton. The mass of subatomic particles is measured in atomic mass units (amu). The proton has a mass of 1.007 amu, the neutron has a mass of 1 amu, and the electron has a mass of .0005 amu.
There are three atomic particles with mass, the proton, neutron and electron. Of these three, the proton is the particle with a positive charge.
This particle is the neutron: 1,00866491600(43) amu.
The electron is the lightest particle in the atom.
In the atom the heaviest particle is the neutron but the proton is close.