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Chemistry, 06.08.2019 03:20 lizzy6629

The half-life of a positron is very short. it reacts with an electron, and the masses of both are converted to two gamma-ray photons. e+10 +0−1e⟶ this reaction is called an annihilation reaction. the mass of an electron or positron is 9.109×10−31 kg. (a) calculate the energy produced by the reaction between one electron and one positron. (b) assuming that the two γ-ray photons have the same frequency, calculate this frequency. j = hz

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