Across
- 4. positive charge, lives in the nucleus
- 5. are the simplest form of a pure substance made up of the same atoms
- 7. equals the number of protons
- 8. are on the left side of the periodic table
- 9. the most effective of organising and grouping the elements
- 10. you cannot see the different substance that makes it up
- 11. you can shape it
- 13. the mass of the atom
- 14. how shiny it is
- 15. made up of only one type of matter
- 17. made up of different atoms
- 19. negative charge, lives in the orbitals
- 20. you can stretch it
Down
- 1. is made up of tiny particles called atoms
- 2. the are on the right side of the periodic table
- 3. workplace hazardous materials information system
- 6. you can see the different substance that makes it up
- 12. no charge, lives in the nucleus
- 13. the smallest particle of matter
- 16. conducts electricity
- 18. when 2 or more atoms join up together