Question

How do you write the nuclear equation of the 'annihilation of beta particles to form radiation'?

Answer 1

Annihilation just means the destruction of particles that have nonrelativistic mass. This occurs when a particle and antiparticle collide. Likely the example you are looking for is the annihilation of an electron (`""_(-1)^(0) e`) by a positron (`""_(+1)^(0) e`):

`""_(-1)^(0) e + ""_(+1)^(0) e -> 2""_(0)^(0) gamma`

This forms 2 gamma ray photons, `""_(0)^(0) gamma`. Here we observe

• conservation of charge
• conservation of particles

The net charge remains `0`, and the net number of particles remains `2`. The photons have no nonrelativistic mass.