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→Key Stage 4
===General Formulae===
Beta Decay: <math>{}_Z^AX \rightarrow {}_{Z+1}^{A}Y + {}_{-1}^0\beta</math>
Gamma Emission: <math>{}_Z^AX \rightarrow {}_Z^AX + {}_0^0\gamma</math>
Neutron Decay: <math>{}_Z^AX \rightarrow {}_{Z}^{A-1}Y + {}_0^1n</math>
===Examples===
<math>{}_{238}^{92}U \rightarrow {}_{234}^{90}Th + {}_4^2\alpha</math>
<math>{}_{238}^{92}U \rightarrow {}_{234}^{90}Th + {}_4^2\alpha</math>
===Calculating the Element/Isotope===