Across
- 3. Radiation which is very ionising, but cannot travel through paper or a few cm of air.
- 4. Radiation which can penetrate through everything except thick lead, but is weakly ionising.
- 7. The name given to the particles inside the nucleus (Protons and Neutrons)
- 8. When an electron is removed from an atom. Radiation does this.
- 9. The unit of Activity.
- 10. We cannot tell when a specific nucleus will decay and release radiation. We say that decay is a ______ process
Down
- 1. The time taken for 50% of the radioactive nuclei to decay.
- 2. Common danger from having doses of radiation that are too large.
- 3. The number of protons in a nucleus. The ________ Number.
- 5. The amount of nuclei decaying per second.
- 6. Type of particle released in beta decay