Chemistry

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Across
  1. 2. The first element on the periodic table. A flammable gas.
  2. 7. An alloy made of copper and tin.
  3. 8. A space that contains no particles.
  4. 10. The formula for this compound is H₂O.
  5. 11. The sixth element on the periodic table. Diamonds are made of this.
  6. 12. The symbol for this element is K.
  7. 14. The eighth element on the periodic table. A gas that is necessary for breathing.
  8. 15. The symbol for this element is Au.
Down
  1. 1. The symbol for this element is Fe.
  2. 2. The second element on the periodic table. A nonreactive gas.
  3. 3. The seventh element on the periodic table. The most abundant gas in air.
  4. 4. The change of state from a liquid to a solid.
  5. 5. The symbol for this element is Na.
  6. 6. The symbol for this element is Ag.
  7. 9. The formula for this compound is NaCl. It makes food taste better.
  8. 13. An alloy containing iron and carbon.