Across
- 4. particle identical to nucleus
- 5. the lightest stable subatomic particle
- 10. elements with the same number of protons but not neurtons
- 14. spontaneous transformation or a nucleus
- 15. high-speed electrons
- 17. products that are part of radioactive decay
- 18. the nucleus of one isotope
- 19. stable subatomic particle with a positive charge
- 20. mass of atoms expressed by units
Down
- 1. when nucleus becomes too unstable
- 2. the building blocks of matter
- 3. subatomic particle found in the nucleus
- 6. spontaneous releasing of radiation
- 7. shortest wave length of electromagnetic radiation
- 8. high-speed electrons released from vacuum tube
- 9. splitting or joining of a nucleus
- 11. high energy electron emitted with radioactive decay
- 12. energy source traveling through space
- 13. numbers are arranged in order of increasing number of protons
- 16. the amount of water in one atom