Across
- 2. smallest possible unit into which matter can be divided while still maintaining properties
- 4. energy (heat) is released
- 7. Hg
- 10. energy (heat) is absorbed
- 12. negatively charged particles
- 14. atoms have same number of protons, but have different # of neutrons
Down
- 1. stored in the chemical bonds of a substance
- 3. the # of protons in the nucleus
- 5. Gold
- 6. Sn
- 8. any substance that cannot be decomposed into simpler substances by ordinary chemical processes.
- 9. protons + neutrons
- 11. can be shaped
- 13. K