It produces an alpha particle (or Helium-4 nucleus) and a neutron, and releases 17.6 megaelectron volt (MeV) of energy in the form of kinetic energy of the products (3.5 MeV to alpha particle and 14.1 ...

An unstable nucleus can emit a ‘package’ of two protons and two neutrons, called an alpha particle, to become more stable. Alpha radiation is made up of a stream of alpha particles emitted ...

An alpha particle consists of two protons and two neutrons and is often described as a helium nucleus. It is not the same as a helium atom as it does not contain any electrons but it is written ...