chemistry

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Across
  1. 4. energy produce as a difference in temperature
  2. 7. compounds of non metals
  3. 8. property of substance depends on the amount present
  4. 11. pack of energy
  5. 12. polyatomic ions
  6. 14. mole of solute per kilogram of solution
  7. 15. measures air pressure
  8. 16. charged atoms
  9. 17. oxygen group
  10. 19. blueprint of elements
  11. 23. positive electron
  12. 25. noble gas
  13. 28. salt former group of elements
  14. 29. most electronegative element
  15. 30. most highly reactive group of metal
  16. 33. ability of metal to expand
  17. 35. most abundant element
  18. 37. most reactive element in activity series
Down
  1. 1. shell outermost energy level
  2. 2. particles of light
  3. 3. discovered neutron
  4. 5. tendency to attract electrons of an atom to itself
  5. 6. colloids with attraction between dispersed phase and medium
  6. 9. father of nuclear physics
  7. 10. discovered phlogiston
  8. 13. semimetals
  9. 18. discovered chemical structure of benzene
  10. 20. energy needed to remove the most loosely bound electron
  11. 21. process of separating colors
  12. 22. collectively called for proton and neutron
  13. 24. colloids with no attraction between dispersed phase and medium
  14. 26. father of vulcanization
  15. 27. tingling sound of metals
  16. 31. first artificial element
  17. 32. colloids property to ooze out water
  18. 34. element where country argentina got its name
  19. 36. any material under study