A proton is annihilated when it interacts with which one or more of the following particles?
A)an electron
B)a neutron
C)an antineutron
D)an antiproton

Question

Quizplus · Accepted Answer

A proton can be annihilated only when it interacts with its antiparticle, which is the antiproton. The interaction leads to the conversion of both the particles into energy in the form of gamma rays. Interactions with electrons or neutrons (or antineutrons) do not result in annihilation.

A Proton Is Annihilated When It Interacts with Which One