Across
- 3. capacity to do work
- 6. area of an atom with electrons
- 8. takes up space
- 10. force that holds same molecules together
- 11. sum of the numbers of protons and neutrons
- 13. force that holds different substances together
- 15. two or more substances mixed together throughout
- 18. north or south
- 19. positive charge
Down
- 1. solution neutralizes acid or base
- 2. chemical change electrons are gained
- 4. atom with a charge
- 5. cannot be broken down or seperated
- 7. amount of matter in an object
- 9. group of atoms
- 10. two or more atoms
- 12. speed up processes
- 14. no charge
- 16. atom having same protons different neutrons
- 17. smallest unit of an element