Across
- 3. reaction- a process in which when one thing happens and makes other things do stuff
- 4. particle- helium 4 over 2
- 6. number- How much it weighs
- 11. A product that has a different mass number than it usually have.
- 12. radioactive substances, or the radiation emitted by these.
- 13. fusion- Combining smaller atoms to make a bigger atom.
- 14. neutral charged subatomic atom
Down
- 1. fission-Splitting of an atom, usually Uranium.
- 2. of an Atom
- 5. radiation- Y 0 over 0
- 7. number- The amount of protons
- 8. How long it takes half of a particle to decay.
- 9. particle- electron 0 over 1
- 10. positively charged subatomic atom