Classifying Elements

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Across
  1. 3. A nonmetal that makes up almost half of Earth's crust, oceans, and atmosphere.
  2. 5. A metalloid with the symbol Si.
  3. 6. A mixture of a metal and a nonmetal.
  4. 8. Metals located in Group 2 of the periodic table.
  5. 9. The appearance of most metals.
Down
  1. 1. A transition metal with the symbol Cr.
  2. 2. Able to be hammered or pressed permanently out of shape without breaking.
  3. 4. Make up 99% of the universe.
  4. 5. The symbol for standard temperature and pressure.
  5. 7. A basic metal with the symbol Ga.
  6. 8. Metals located in Group 1 of the periodic table.