Across
- 1. Chemical representation of a substance
- 3. Element with mixed properties
- 7. Element that lacks metallic properties
- 9. Force of gravity on an object
- 12. Center of an atom
- 13. Basic building block of matter
- 15. Scientist known for gas law constant
Down
- 2. Unit for counting atoms or molecules
- 4. Mass per unit volume
- 5. Row in periodic table
- 6. Amount of matter in object
- 8. Element that conducts electricity
- 10. Column in periodic table
- 11. Symbolic expression of a reaction
- 14. Path of electron around nucleus