Across
- 3. this radiation is stopped by paper/skin
- 4. the opposite of unbalanced
- 6. the name of the big number at the front when balancing equations
- 9. A type of special condition for a reaction to occur
- 10. this radiation is stopped by concrete
Down
- 1. this radiation is stopped by aluminium
- 2. the subatomic particle that is negatively charged
- 5. Isotopes undergo this to become more stable
- 7. Carbon-13 and Carbon-14 are called this. Starts with "I"
- 8. Small particle made up of proton, neutron and electron