Periodic Table

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Across
  1. 2. A horizontal row on the periodic table
  2. 4. These elements are nonreactive and very stable
  3. 6. Shiny, malleable, and conducts heat and electricity
  4. 7. A vertical column on the periodic table
  5. 8. The lightest element in the universe
Down
  1. 1. Chemical family found in Group 17
  2. 3. Not a metal, not a non-metal
  3. 5. A uniform mixture, like apple juice