Across
- 1. quantity of matter an object contains
- 4. horizontal row
- 7. negatively charged
- 8. how much mass is contained within a given volume
- 11. something made from a single atom
- 12. vertical coloumn
- 13. a shiny object
Down
- 2. fixed shape and volume
- 3. neutral charged
- 5. the things atoms sit on
- 6. to a degree to which something is reacitve
- 9. a letter on the periodic table
- 10. positivly charged