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|[[File:NuclearKey.png|center|200px]]
|[[File:NeutronDecay3.png|center|300px]]|-| style="height:20px; width:400px300px; text-align:center;" |This is a key to show the types of [[particle]]s in the following [[Radioactive Decay|decays]] of [[Unstable Isotope|unstable nuclei]].| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it has too many [[neutron]]s relative to [[proton]]s so it [[Radioactive Decay|decays]] via [[Neutron Radiation|neutron radiation]] reducing the [[Relative Atomic Mass|atomic mass]] by 1.
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|[[File:BetaDecay3.png|center|300px]]
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| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is too [[massive]] or and has too few [[neutron]]s relative to [[proton]]s so it [[Radioactive Decay|decays]] via [[Alpha Radiation|alpha emission]] reducing the [[Relative Atomic Mass|atomic mass]] by 4 and the [[Atomic Number|atomic number]] by 2.| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is too many [[neutron]]s so it [[Radioactive Decay|decay]]s via [[Beta Radiation|beta emission]] in which a [[neutron]] turns into a [[proton]] increasing the [[Atomic Number|atomic number]] by 1.
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| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is has excess [[Vibrational Energy|vibrational energy]] so it [[Radioactive Decay|decays]] by [[emit]]ting a [[Gamma Radiation|gamma ray]]. After the [[Radioactive Decay|decay]] it still has the same [[Relative Atomic Mass|atomic mass]] and [[Atomic Number|atomic number]] but is no longer [[vibrating]].
| style="height:20px; width:300px; text-align:center;" |This [[Atomic Nucleus|nucleus]] is [[Unstable Isotope|unstable]] because it is far too [[massive]] and has too many [[neutron]]s so it [[Radioactive Decay|decay]]s by splitting splits into two smaller, more [[Stable Isotope|stable]] [[element]]s and releases some [[neutron]]s. This is not a [[Radioactive Decay|radioactive decay]] and is referred to as [[Nuclear Fission|nuclear fission]].
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