Across
- 1. formula- the chemical symbols and
- 3. are not
- 5. a substance made of atoms of more
- 12. mixture-
- 14. all of the properties characteristic of that
- 16. the smallest unit of a substance that
- 17. units
- 18. is anything that has mass and occupies
- 21. the smallest particle that has the properties
- 22. simpler substances.
Down
- 2. a combination
- 4. and definite
- 6. occurs between
- 7. an element.
- 8. mixed
- 9. mixture-
- 10. that has a fixed
- 11. substance- any
- 13. more than one pure
- 14. a substance that cannot be broken down
- 15. of a substance.
- 19. one element bound together.
- 20. indicating the atoms contained in the basic