Question

In ${\beta }^{+}$ decay process, the following changes take place inside the nucleus

• A. ${}_Z^{A}X{⟶}_{Z-1}^{A}Y+e^{+}+\gamma$
• B. ${}_Z^{A}X{⟶}_{Z+1}^{A}Y+e^{-}+\gamma$
• C. ${}_Z^{A}X{⟶}_Z^{A}Y+e^{-}+\gamma$
• D. ${}_Z^{A}X{⟶}_Z^{A}Y+e^{-}+\overline{\gamma }$

Answer 1

The correct option is A ${}_Z^{A}X{⟶}_{Z-1}^{A}Y+e^{+}+\gamma$

In β+ decay, positron emission takes place and the weak interaction converts an atomic nucleus into a nucleus with atomic number decreased by one, while emitting a positron. This may be considered as the decay of a proton inside the nucleus to a neutron.