Across
- 4. creator of the periodic table
- 6. the level of acidity in a substance
- 8. a horizontal row in the periodic table
- 9. can't take apart ingredients
- 10. doesn't conduct energy, stops energy flow
- 12. a vertical column in the periodic table
Down
- 1. two or more elements chemically combined
- 2. how dense or thick something is
- 3. something made of one type of atom
- 5. allows energy to flow from one place to another
- 7. able to take apart the substance or mixture
- 11. the basic unit of a chemical element