Across
- 4. the basic building blocks of matter
- 5. pure substance made up of more than one element chemically bound
- 8. mixture in which substances are not evenly distributed
- 10. diagram showing all parts of an atom, bullseye
- 11. particle in the nucleus with a neutral charge
- 12. the amount of matter in a substance
- 14. pure substance made of a single type of atom
- 15. the center of an atom
Down
- 1. anything that has mass and volume
- 2. the amount of space a substance occupies
- 3. matter made up of two or more substances physically combined
- 6. particle in the nucleus with a positive charge
- 7. mixture in which substances are evenly distributed
- 9. particle outside the nucleus with a negative charge
- 13. how much space a substance takes up in relation to its mass