Across
- 3. the beta particle comes from this
- 5. when an element changes into another element
- 9. particle with a negative charge
- 10. a positive beta particle
- 12. an isotope that is unhappy
- 13. elements of an atom with a different mass
- 14. where protons and neutrons can be found
- 18. this can be found in an orbital
- 19. particle with a mass of 4 amu
- 20. a reaction that release energy
- 21. anything that has mass and takes up space
Down
- 1. a mixture with a uniform mix
- 2. a beta positive
- 4. this defines the element. The atomic _____
- 6. an unstable isotope lets out
- 7. weight
- 8. Stored energy
- 11. Point 100 degrees
- 15. the study of matter
- 16. The nucleus has a _____ charge
- 17. no mass and no charge