Nuclear equations In alpha radiation, the mass number ____ and the ____ number decreases by 2. This is because an alpha particle is emitted, which is made of ____. In beta radiation, the mass number ____ and the atomic number ____. This is because in the nucleus, a neutrons decays into a ____ and emits a high-speed ____. Gamma radiation is an ____. It is not a particle, so the mass number and atomic number of the radioactive atom does ____. All atoms are ____ because they have the same number of protons (which are ____) and electrons (which are ____), so the charges are balanced and there is no overall ____.

Nuclear radiation

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