Alpha, Beta and Gamma radiation

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Type of Radiation Alpha particle Beta particle Gamma ray
Definition Helium nucleus Electron Electromagnetic
Mass 4 1/1800 0
Charge 2+ 1 0
Ionising ability Strongly ionising as Weakly ionising as it Not ionising at all as
it is quite large and is quite small, gamma radiation is
so easier to knock therefore more just a wave of
off electrons difficult to knock off energy and cannot
electrons collide with other
atoms, so it cannot
knock off any
Penetrating power Low Medium High
Stopped by Skin and paper Thin sheet of Lead and concrete
Alpha, Beta and Gamma radiation


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