| Clue | Type of radiation |
| Which is the most ionising type of radiation? | |
| Which is the least penetrating type of radiatinon? | |
| Which is the least ionising type of radiation? | |
| If a nucleus decays and the atomic number goes down by two what radiation was emitted? | |
| What is used in a smoke alarm? | |
| Which is a helium nucleus travelling at high speed? | |
| Which is used to make sure paper is kept at the right thickness? | |
| Tracers in the body usually have a half life of a few hours and emit this radiation | |
| If a neutron turns into a proton in the nucleus of an unstable atom, what radiation is emitted? | |
| Which is the most penetrating type of radiation? | |
| Which radiation has the biggest mass? | |