- An atom consists of protons and neutrons in the centre of a nucleus and electrons whizzing around the outside. It is important you know this, then you can understand more clearly what an isotope is.
- Isotopes are atoms with a different number of neutrons but the same number of protons. For example, a carbon isotope might have 6 protons and 8 neutrons, whereas the original atom has 6 protons and 6 neutrons.
- Radioactive decay happens in unstable isotopes. Radioactive decay is basically the nucleus of the isotope breaking down, this is a random process and we can't control when it happens.
- When radioactive decay occurs, one of 3 types of radiation are…