This is the balanced equation [tex]^{242} Pu_{94} \rightarrow ^{238} U_{92} +^{4} \alpha _{2} + ^{0} \gamma _{0}[/tex].
A chemical equation is a symbolic representation of a chemical reaction in the form of symbols and formulae, where the reactant entities are given on the left and the product entities are given on the right, with a plus sign separating the entities in both the reactants and the products and an arrow pointing in the direction of the products to indicate the reaction's direction. The absolute values of the stoichiometric numbers are shown as coefficients next to the symbols and formulas of the entities. Jean Beguin drew the first chemical equation in 1615.
[tex]^{242} Pu_{94} \rightarrow ^{238} U_{92}[/tex]
So, it will release an alpha particle
so the reaction will be,
[tex]^{242} Pu_{94} \rightarrow ^{238} U_{92} +^{4} \alpha _{2} + ^{0} \gamma _{0}[/tex]
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