Across
- 3. a particle emitted when the neutron splits
- 5. emitted from the nucleus
- 7. same element with different amounts of neutrons
- 8. spilitting
- 9. combining
- 12. the mass of the nucleus of one isotope of an element
Down
- 1. rhymes with crouton
- 2. the amount of time it takes for half the the element to decay
- 4. number of protons in the nucleus
- 6. the positive particle
- 10. high energy radiation
- 11. the energy or the particle thrown off of an radioisotope the nucleus of a radioactive isotope