A neutron has about the same mass as a proton.
the neutral or no charge particle of an atom:it is located in the nucleus;has the same mass as the proton.
Commonly considered to be a neutron. However the true mass of a neutron is slightly higher than the combined mass of a proton and an electron.
This particle is the neutron.
A neutron has approximately the same mass as a proton. Electrons have much lower mass.
The neutron.
Neutrons
Neutron
A beta particle is an electron (β-) or a positron (β+). The mass of a beta particle is approximately 9.11 x 10^-31 kilograms for an electron and the same for a positron. The charge of a beta particle is -1 elementary charge for an electron and +1 elementary charge for a positron.
The proton and the neutron have mass each of one atomic mass unit. Actually they are not quite the same, but they are very close.
A neutron and a proton have approximately the same mass.
A neutron. It is one of the particles in the nucleus and has no charge
A similar mass has the neutron but it is neutral.