Periodic Table

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Across
  1. 5. The rows of the periodic table that classify the elements by the number of electron shells
  2. 6. These are typically shiny, malleable, and good conductors of electricity
  3. 7. A one or two letter notation used to represent an atom of a particular element
  4. 8. A pure substance that cannot be seperated into simpler substances
Down
  1. 1. Elements that have properties of both metals and non-metals
  2. 2. These are typically dull, usually a gas, and not a good conductor of electricity
  3. 3. The columns on the periodic table that arrange the elements by the number of valence electrons
  4. 4. Unreactive non-metals located in Group 18