The energy released when one sodium-22 atom decays via the beta-plus decay process is 0.941 MeV.
This is because the beta-plus decay process is a type of radioactive decay in which a proton in the nucleus of an atom is converted into a neutron, releasing a positron (positively charged electron) and an electron neutrino in the process.
During this process, the mass of the nucleus decreases and the resulting difference in mass is converted into energy according to Einstein's equation, E = mc2. This energy is released as gamma radiation, which has an energy of 0.941 MeV.
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