Across
- 1. Part of an atom containing protons and neutrons
- 5. The scientist who discovered the nuclear model of the atom
- 8. When a radioactive substance comes into contact with clothing or could be ingested.
- 11. Positive component of an atom
Down
- 2. Negative component of an atom
- 3. The name of the equipment used to detect radiation in the air
- 4. No direct physical contact between radioactive source and body organism
- 6. A type of radiation, also part of the electromagnetic spectrum
- 7. The term given to low-level radiation that is around us
- 9. Atoms of the same element with a differnet number of neutrons
- 10. Neutral component of an atom