Across
- 5. The first letter in the greek alphabet
- 6. One billionth of a metre.
- 10. Splitting the nucleus ('splitting the atom')
- 16. Radiation can be used to kill bacteria.
- 18. This happens when an electron is removed from an atom.
- 20. A subatomic particle that exists in the nucleus.
- 21. It contains protons and neutrons.
- 22. Something that emits radiation is this.
- 24. Ninety Two protons.
- 25. Radiation with a wavelength smaller than X-rays.
- 26. Radiation is dangerous because it does this.
Down
- 1. The mild mannered version of the Hulk.
- 2. Sticking small atoms together to create larger ones.
- 3. Six protons.
- 4. bitten by a radioactive spider
- 7. Emitted by radioactive material.
- 8. A particular mass of the an element.
- 9. An element used in nuclear bombs
- 11. Electrons live in these.
- 12. Positive subatomic particle.
- 13. Has approximately 1/1800 of the mass of a proton.
- 14. One sheet of this can block Alpa radiation.
- 15. Monster spawned from the waste from nuclear bomb tests.
- 17. A dense material that is particular good at absorbing radiation.
- 19. Radiation consisting of fast moving electrons
- 20. Has a quark composition of UP DOWN DOWN.
- 23. The smallest possible particle of an element.