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5 Written questions

5 Matching questions

  1. Octet Rule
  2. Electron Affinity
  3. Hydrogen and Lewis Structures
  4. Ionization Energy
  5. Dipole Moment
  1. a The energy required to remove an electron from an atom or ion in the gaseous state. Increases from left to right and from bottom to top on the Periodic Table.
  2. b H is never the central atom.
  3. c A quantitative measure of the magnitude of a dipole. The higher the dipole moment, the more polar is the molecule.
  4. d The energy released when an atom or ion in the gaseous state gains an electron. Increases from left to right and from bottom to top on the Periodic Table.
  5. e States that representative elements tend to gain, lose, or share electrons until they are surrounded by eight valence electrons (an octet).

5 Multiple choice questions

  1. Hydrogen provides an exception to the octet rule because it requires only two electrons to attain a noble gas configuration.
  2. Two or more Lewis structures that are equally good representations of the bonding in a molecule or ion. Usually differ only in the positions of multiple bonds or single, unpaired electrons.
  3. (∆ H lattice) is the energy required to completely separate a mole of a solid ionic compound into its gaseous ions. Ionic compounds tend to have high lattice energies, which tend to make ionic compounds hard and brittle with relatively high melting points.
  4. A molecule with one end having a slight positive charge and the other end having a slight negative charge due to differences in electronegativity. Arrow points towards the more electronegative element.
  5. Orbital Hybridization sp2

5 True/False questions

  1. Sextet Rule ElementsH


  2. 2 EDOrbital Hybridization sp


  3. IonsForm when electrons transfer from an atom of low ionization energy (usually a metal) to an atom of high electron affinity (usually a nonmetal). The electrostatic attraction between two oppositely charged ions constitutes this bond.


  4. Covalent BondResults from sharing electrons between two atoms, usually nonmetal atoms.


  5. Polar Covalent0.4-1.0