hydrogen
A neutron is the subatomic particle with a charge of 0 and a mass of 1 atomic mass unit.
This atomic particle is the neutron.
Photons and neutrinos dont have mass.
atomic number = number of protons = number of electrons atomic mass = mass of protons + mass of neutrons
A beta particle, which can be either an electron (β-) or a positron (β+), has a very small atomic mass of approximately 0.00054858 atomic mass units (amu) for an electron. This is significantly less than the atomic masses of protons and neutrons, which are about 1 amu each. In practical terms, the mass of a beta particle is often considered negligible compared to nucleons in atomic nuclei.
The atomic mass is the mass of a molecule, atomic particle or sub-atomic particle.
This atomic particle is the neutron.
The three main subatomic particles are the proton, neutron, and electron. Of these three, the electron has the least amount of mass at about 0.0005 amu or atomic mass units.
A neutron is the subatomic particle with a charge of 0 and a mass of 1 atomic mass unit.
This atomic particle is the neutron.
Photons and neutrinos dont have mass.
An alpha particle is a helium-4 nucleus. It has a mass of about 4 atomic mass units.
The least massive principle atomic particle is the electron. Neutrons and protons are much more massive and are about equal in mass. Of course, there are even smaller particles such as quarks which are less massive than even electrons.
Electron
atomic number = number of protons = number of electrons atomic mass = mass of protons + mass of neutrons
A beta particle, which can be either an electron (β-) or a positron (β+), has a very small atomic mass of approximately 0.00054858 atomic mass units (amu) for an electron. This is significantly less than the atomic masses of protons and neutrons, which are about 1 amu each. In practical terms, the mass of a beta particle is often considered negligible compared to nucleons in atomic nuclei.
atomic mass unit