Across
- 2. forms of an element with different # of neutrons
- 4. have properties of metals and nonmetals
- 6. brittle and insulators
- 8. a soft metal
- 10. the date that Mole day takes place
- 13. an element with the symbol C
- 15. a liquid
Down
- 1. solid malleable and luster
- 3. negatively charged subatomic particle
- 5. the smallest unit of matter
- 7. the 10th month of the year
- 9. neutrally charged subatomic particle
- 11. the center of an atom
- 12. also a liquid
- 14. positively charged subatomic particle