It could be either an alpha particle or a He-4 isotope.
An alpha particle has 2 protons and 2 neutrons. That is the same as a helium nucleus.
A nucleon is the amount of protons and neutrons. An alpha particle has an atomic number of 2 and a atomic mass of 4 then it has 2 protons and 2 neutrons.There are 4 nucleons in an alpha particle.
2 protons and 2 neutrons (an a-particle is effectively a helium atom without any electrons).
An alpha particle is a helium nucleus. So, it contains 2 protons and 2 neutrons.
An alpha particle is a helium nucleus, which consists of 2 protons and 2 neutrons. When an unstable nucleus emits an alpha particle, it loses 2 protons, which means its atomic number will be reduced by 2.
2 protons and 2 neutrons. An alpha particle is the same as a helium nucleus.
A helium-4 nucleus, that is, a nucleus with 2 protons and 2 neutrons.
When a radioactive nucleus emits an alpha particle, it decreases by two protons and two neutrons. This results in a new nucleus with a lower atomic number by 2 and lower mass number by 4. The emitted alpha particle is a helium nucleus (2 protons and 2 neutrons) and carries a positive charge.
Alpha radiation is made up of alpha particles, which are helium nuclei consisting of two protons and two neutrons. These particles have a positive charge and are relatively large and heavy compared to other types of radiation.
An alpha particle is the same as a helium-4 nucleus: 2 protons and 2 neutrons, all together.
An alpha particle.
An alpha particle is the same as a helium nucleus. It contains 2 neutrons and 2 protons. It has no electrons, so it is not an atom.