Consider the incomplete nuclear equation ^ 131 _ 53 I ; ; ^ 131 _ 54 Xe +e^ - + ;

PHYSICS · Single correct · A Level · Physics · Particles and radiation · Particles and radiation

Problem

Consider the incomplete nuclear equation 53131I  ⟶  54131Xe+e−+  ?^{131}_{53}\text{I} \;\longrightarrow\; ^{131}_{54}\text{Xe}+e^{-}+\;? Which particle best completes the equation while satisfying all conservation laws? (a) a positron (e+)(e^{+}) (b) an electron antineutrino (νˉe)(\bar{\nu}_e) (c) an electron neutrino (νe)(\nu_e) (d) a γ\gamma photon

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