Across
- 2. / makes use of gravity to sustain fusion
- 5. / when protons and neutrons form the nucleus
- 8. / when nucleons are forced together
- 12. / consequence of fusion occuring at very high temperatures
- 13. / anti-particle of an electron
- 14. / identifying isotopes from their characteristic half lives, decay particles and energy by applying neutrons
- 15. / my teacher calls himself
- 18. / 100 times as strong as an electrical force
- 19. / should be called a nuclear bomb
- 20. / high number of nucleons to a low number
Down
- 1. / two nucleons can't do the same thing at the same time
- 3. / replacing atoms with a radioisotope to unveil it's origins
- 4. / dating old objects by counting the number of electrons in an excited state
- 6. / their half-life is only 18 minutes because they are unstable by themselves
- 7. / radioactive debri
- 9. / low number of nucleons to a high number
- 10. / just a form of a given element with a different number of neutrons
- 11. / most useful for dating anything that has been alive
- 16. / all of them have one proton
- 17. / tends to be lean with no radioactive isotopes
- 18. / collective name of protons and neutrons