Electrochemistry & Chemical Bonding

1234567891011121314151617181920212223242526272829303132333435363738394041
Across
  1. 3. The SI unit of potential difference.
  2. 6. The process by which an electrical current is used to drive an otherwise nonspontaneous redox reduction.
  3. 13. An empty molecular orbital in a semiconductor.
  4. 14. A measure of the difference in potential energy per unit of charge.
  5. 15. An orbital whose electrons remain localized on an atom.
  6. 16. A mathematical procedure in which standard atomic orbitals are combined to form new, hybrid orbitals.
  7. 20. The molecular geometry of a molecule with octahedral electron geometry and one lone pair.
  8. 24. The electrode in an electrochemical cell where oxidation occurs.
  9. 25. The bond that forms between two p orbitals that overlap side to side.
  10. 28. The electrode in an electrochemical cell where reduction occurs.
  11. 30. A conductive surface through which electrons can enter or leave a half-cell.
  12. 32. A type of semiconductor material that produces an electric current when it is exposed to light.
  13. 34. A local molecular geometry where the bond angle is less than 180-degrees.
  14. 35. In solids, a higher energy set of normally empty molecular orbitals that are involved in electrical conduction.
  15. 37. A molecular orbital that is higher in energy than any of the atomic orbitals from which it was formed.
  16. 38. The molecular geometry of a molecule with trigonal bipyramidal electron geometry and two lone pairs in axial positions.
  17. 40. A device in which a chemical reaction either produces or is carried out by an electrical current.
  18. 41. The molecular geometry of five atoms with 109.5-degree bond angles.
Down
  1. 1. In solids, a lower energy set of filled molecular orbitals.
  2. 2. The force that results in the motion of electrons due to a difference in potential.
  3. 4. The molecular geometry of three atoms with a 180-degree bond angle due to the repulsion of two-electron groups.
  4. 5. A general term for long pairs, single bonds, multiple bonds or lone electrons in a molecule.
  5. 7. Devices composed of photovoltaic materials that are used to produce electricity from light.
  6. 8. The flow of electric charge.
  7. 9. An energy gap that exists between the valence band and conduction band of semiconductors and insulators.
  8. 10. The molecular geometry of four atoms with 120-degree bond angles in a plane.
  9. 11. For a molecule, the number of electrons in bonding orbitals minus the number of electrons in nonbonding orbitals divided by two.
  10. 12. The resulting bond that forms between a combination of any two s, p, or hybridized orbitals that overlap end to end.
  11. 17. An electrochemical cell that uses electrical current to drive a nonspontaneous chemical reaction.
  12. 18. orbitals formed from the combination of standard atomic orbitals that correspond more closely to the actual distribution of electrons ina chemically bonded atom.
  13. 19. The molecular geometry of a molecule with tetrahedral electron geometry and one lone pair.
  14. 20. The molecular geometry of a molecule with trigonal bipyramidal electron geometry and one lone pair in an axial position.
  15. 21. The potential difference between the cathode and the anode in an electrochemical cell.
  16. 22. One half of an electrochemical cell where either oxidation or reduction occurs.
  17. 23. Set of empty molecular orbitals that are slightly higher in energy than the valence band in a semiconductor material.
  18. 26. From quantum theory, probability distribution maps for the electrons as they exist within atoms.
  19. 27. The molecular geometry of six atoms with 120-degree bonds between the three equatorial electron groups and 90-degree bond angles between the two axial electron groups and the trigonal plane.
  20. 29. The geometrical arrangement of electron groups in a molecule.
  21. 31. The geometrical arrangement of atoms in a molecule.
  22. 33. A voltaic cell that uses the oxidation of hydrogen and the reduction of oxygen, forming water, to provide electrical current.
  23. 36. Set of occupied molecular orbitals that are slightly lower in energy than the conduction band in a semiconductor material.
  24. 39. A device that allows the flow of electrical current in only one direction.