Sodium-22 (1122Na) is often used as a calibration source because it decays to 1022Ne while simultaneously emitting a γ-ray photon and one lepton. No other particles are produced.
(a) Determine the identity and symbol of the lepton emitted in this decay and write a balanced nuclear equation that includes the γ photon.
(b) Using conservation principles, explain why the presence of the γ photon has no effect on the accounting of lepton number in the reaction you wrote in part (a).