This atomic particle is the neutron.
An electron has a negative charge and a mass close to 0 amu (atomic mass unit).
No, an alpha particle has a mass of 4 amu and a charge of +2. It is a helium nucleus. The neutron has a mass of 1 amu and no charge.
Both one proton and one neutron each has a relative mass of 1 a.m.u.
Proton.
No, that would be a neutron. A proton is a nuclear particle with a mass of 1 AMU and a 1+ charge
The mass of an alpha particle is approximately 4 amu (atomic mass units).
The neutron; nmass = 1, 008 664 915 6(6) amu.
In the atom: Neutron: Mass: 1,00866491600(43) amu. Electron: Mass: 5,4857990946(22)×10−4 amu. Proton: Mass: 1,007276466812(90) amu.
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 mass of an alpha particle is 4 atomic mass units, 2 protons and 2 neutrons, or about 6.644656 x 10-27 kg.
An alpha particle, boom.
In an atom, protons have a mass of approximately 1 atomic mass unit (amu) and a positive charge (+1), located in the nucleus. Neutrons also have a mass of about 1 amu but carry no charge (0), and they are found alongside protons in the nucleus. Electrons have a much smaller mass (about 1/1836 amu) and a negative charge (-1), and they orbit the nucleus in electron shells. Together, these particles make up the fundamental structure of an atom.