An alpha particle is also a helium-4 nucleus. It is written as \(_{2}^{4}\textrm{He}\) and is also sometimes written as \(_{2}^{4}\alpha\). 4. A new element is formed as the nucleus now has less ...

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 ...

If the nucleus has too few neutrons, it will emit a 'package' of two protons and two neutrons called an alpha particle. An alpha particle is also a helium-4 nucleus, so it is written as \(_{2}^{ ...

An alpha particle is expelled from the nucleus. The nucleus of an atom is made of protons and neutrons. Because protons have positive charge, they repel each other, so there must be a force that ...

Early on he found that all known radioactive elements emit two kinds of radiation: positively and negatively charged, or alpha ... particle had a positive charge, so it must have come from nucleus ...

This is where a radioactive form of strontium (strontium-94) absorbs an alpha particle (a helium nucleus), then emits a neutron and transforms into zirconium-97. The study has been published in ...