- Alpha (α) particles
They are represented as , hence with a nucleus number 4 and a charge of +2.
They are positively charged
- Beta (ϐ) particles
They are represented by meaning that they have no mass but a charge of -1.
They are negatively charged.
Gamma (ϒ) particles
They have very short wavelengths in the order of 10-10 m and below.