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→Key Stage 4
*[[Gamma Radiation]] - The [[emission]] of a [[Gamma Ray|gamma ray]] from the [[Atomic Nucleus|nucleus]] of an [[Unstable Isotope|unstable isotope]].
====Ionising Atoms====
{| class="wikitable"
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|[[File:AlphaIonise.png|center|500px]]
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| style="height:20px; width:500px; text-align:center;" |When an [[Alpha Particle|alpha particle]] interacts with an [[atom]] the [[Alpha Particle|alpha particle]] can remove one or two [[electron]]s to '''ionise''' the [[atom]].
|}
{| class="wikitable"|-|[[File:BetaIonise.png|center|500px]]|-| style="height:20px; width:500px; text-align:center;" |When a [[Beta Particle|Beta minus particle]] interacts with an [[atom]] the [[Beta Particle|beta minus particle]] can pass on some of its [[Kinetic Energy Store|kinetic energy]] to an [[electron]] in the [[Outer Shell|outer shell]] causing the [[electron]] to escape '''ionising''' the [[atom]].|}
===Ionising Radiation and Cancer===
: Exposure to '''ionising radiation''' is a [[Risk Factor|risk factor]] in [[cancer]].