Across
- 3. contributions to atomic physics,
- 4. a change in colo
- 8. examine the elements involved and their location on the periodic table
- 9. Block of matter
- 12. radioactive elements
- 13. solid, liquid, and gas
- 14. bonds are characterized by the sharing of electrons between atoms
Down
- 1. a combination of metal and nonmetal elements,
- 2. atomic number, group, period, valence electrons
- 5. their properties, location on the periodic table, or their atomic number
- 6. a place to make elephant toothpaste
- 7. answer
- 10. pressure, volume, temperature
- 11. neutrons+protons
- 15. something about motion, force, and how objects interact