chemistry vocab part 1 & 2

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