Chemistry Review

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Across
  1. 7. the smallest subatomic particle
  2. 8. least reactive group
  3. 9. in a solution of salt water, it's the salt
  4. 11. model of the atom in which electrons have circular orbits
  5. 14. atoms of the same element with different numbers of neutrons
  6. 15. subatomic particle with no charge
  7. 16. nonmetals are located on the ____ side of the periodic table
  8. 17. most reactive group
  9. 21. units for measuring the mass of subatomic particles
  10. 23. scientist who made first periodic table
  11. 25. technique to separates mixtures based on boiling point
  12. 27. instrument that spins to separate mixtures
  13. 28. property of being able to be drawn into wires
  14. 29. vertical column on periodic table
Down
  1. 1. metalloid used in computer chips
  2. 2. scientist who performed the cathode ray experiment
  3. 3. describes a solution withe a low concentration
  4. 4. scientist who performed the gold foil experiment
  5. 5. ancient Greek who said atoms are indivisible
  6. 6. during a chemical reaction, atoms are ________
  7. 10. structure formed as a result of ionic bonding
  8. 12. the charge on a proton
  9. 13. number of valence electrons in oxygen
  10. 18. solution containing more than one metal
  11. 19. this happens to electrons in a covalent bond
  12. 20. one method for breaking apart compounds
  13. 22. horizontal row on periodic table
  14. 24. group 17
  15. 26. the physical property that determines if a balloon floats