Changes

In alpha decay, the nucleus of an atom of atomic number Z and mass number A emits an alpha particle (⁴He nucleus) to form an atom of atomic number Z-2 and mass number A-4. (Adapted from [[ICRP Publication 107]], 2007)

Adapted from [[''ICRP Publication 107]],2 007Glossary entry - May 2019''

 '''Return to [[ICRP Glossary|Glossary]] entry - May 2019'''