Question

In \(\beta\)-decay, when a proton converts into a neutron, the particles emitted are

• A. Electron, neutrino
• B. Positron, neutrino
• C. Positron, antineutrino
• D. Electron, antineutrino

Hint:

Remember, \[ \boxed{ p\rightarrow n+e^++\nu_e } \] (\(\beta^+\)-decay) and \[ \boxed{ n\rightarrow p+e^-+\bar{\nu}_e } \] (\(\beta^-\)-decay).

Answer 1

The Correct Option is B

Step 1: Write the nuclear reaction for \(\beta^+\)-decay. When a proton converts into a neutron, the reaction is \[ p \rightarrow n+e^++\nu_e, \] where \[ e^+ \] is a positron and \[ \nu_e \] is an electron neutrino.

Step 2: Identify the emitted particles. Thus, the emitted particles are \[ \boxed{\text{Positron and neutrino}.} \] Hence, the correct option is \(\boxed{(B)}\).