Periodic Table

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Across
  1. 2. A vertical column on the periodic table
  2. 3. Scientist who created the first version of the periodic table
  3. 6. Inert group on the far right of the table
  4. 7. One or two letters representing an element
  5. 8. Element that is dull, brittle, and poor conductor of heat and electricity
  6. 10. A horizontal row in the periodic table
  7. 11. Shiny, conductive, and often malleable element type
Down
  1. 1. Metals in the center of the periodic table
  2. 3. The average atomic weight of an element
  3. 4. Very reactive metals in group 1
  4. 5. The basic unit of a chemical element
  5. 9. A substance made of only one kind of atom