The radioactive isotope decays by emitting a positron

PHYSICS · Subjective · A Level · Physics · Particles and radiation · Particles and radiation

Problem

The radioactive isotope

^{22}_{11}\text{Na}

decays by emitting a positron. Complete the reaction

^{22}_{11}\text{Na} \;\to\; ^{22}_{10}\text{Ne} + e^+ + \;?

(a) Give the symbol of the missing lepton. (b) State its name.