Chemical Reactions

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Across
  1. 1. group 18 on the periodic table
  2. 3. atoms exchange or share electrons in order to produce a noble gas electron configuration for each element involved
  3. 8. have properties similar to both metals and nonmetals
  4. 9. one of the two products of hydrocarbon combustion
  5. 10. atoms of the same element with different numbers of neutrons
  6. 13. type of bond involving a transfer of electrons
  7. 14. atomic number 79
  8. 17. the smallest whole number ratio of the different atoms in a compound
  9. 20. one of the two products of a hydrocarbon combustion
  10. 21. reaction analogous to "cutting in" on the dance floor
  11. 22. group 1 on the periodic table
  12. 24. type of bond where electrons are shared between two atoms
  13. 28. they represent electrons in orbital diagrams
  14. 30. units of molar mass
  15. 31. reaction where oxygen gas is a reactant
  16. 32. the Greek letter used to show that a reaction is heated
  17. 33. dissolved in water
  18. 36. the outermost electrons of an atom
  19. 38. it speeds up a reaction but is not used up
  20. 39. molecular geometry shape where four atoms are bonded to a central atom
  21. 40. group 2 on the periodic table
  22. 41. reverse of a decomposition reaction
  23. 42. used to determine if Au + NaCl will go
Down
  1. 2. an atoms ability to attract electrons from another atom in a bond
  2. 4. CaS
  3. 5. nitrogen, oxygen, hydrogen, and the halogens
  4. 6. abbreviations for Valence Shell Electron Pair Repulsion
  5. 7. atoms are neither created nor destroyed in a chemical reaction
  6. 11. area of high probability of finding an electron
  7. 12. a solid that separates out of solution in a reaction
  8. 15. charge of silver metal
  9. 16. shows locations of electrons with boxes and arrows
  10. 18. group 2, period 3
  11. 19. elements that contain only one atom in their elemental state
  12. 23. the number of sulfur atoms in elemental sulfur
  13. 25. numbers added before chemical formulas in a reaction to balance it
  14. 26. hydrogen bonds, London dispersion forces, or dipole dipole interactions
  15. 27. 6.022 times 10 to the 23rd
  16. 29. type of reaction that gives off heat
  17. 32. type of reaction when sodium chloride reacts with silver nitrate
  18. 34. evidence of gas formation in a reaction
  19. 35. horizontal rows in the periodic table
  20. 37. abbreviation for a solid that crashes out of solution