Chemistry Review

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Across
  1. 1. non-metals are found on this side of the periodic table
  2. 4. examples include neon, argon and helium
  3. 6. negative subatomic particle
  4. 8. a change that cannot be easily undone
  5. 11. where protons and neutrons are found
  6. 13. metalloids are found near this on the periodic table
  7. 15. an element with the symbol Hg
  8. 18. most reactive non-metals
  9. 20. have characteristics of metals and non-metals
Down
  1. 2. a column on the periodic table
  2. 3. most reactive metals
  3. 5. tells you the number of protons and electrons
  4. 7. a row on the periodic table
  5. 9. an element with the symbol Pb
  6. 10. subatomic particle with no charge
  7. 12. where electrons can be found
  8. 14. positive subatomic particle
  9. 16. change a change in state of matter or size
  10. 17. metals are found on this side of the periodic table
  11. 19. tells you the total number of protons and neutrons