Across
- 3. ionizing radiation
- 5. the number of protons in the nucleus
- 7. center of the atom
- 8. number of protons and neutrons combined
- 12. time required for something to undergo process
- 13. atoms with the same number of protons but different neutrons
- 14. positivity charged
Down
- 1. neutrons released in fission produce
- 2. electron that is thrown our of the nucleus
- 4. smallest radiation amount
- 6. atoms split apart to release energy
- 9. particle composite particles consisting of 2 protons and neutrons
- 10. 2 nuclei make a heavier one
- 11. same mass as proton