CHEMICALLY TUNED

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Across
  1. 6. Horizontal row in the periodic table
  2. 7. The conversion of a liquid to a gas
  3. 13. An ion with a net negative charge
  4. 15. The most abundant gas in Earth's atmosphere (Symbol: N)
  5. 16. The number that represents how many electrons an atom gains, loses, or shares
  6. 17. Substance that increases the rate of a chemical reaction without being consumed
  7. 18. Uncharged particle found in the nucleus of an atom
  8. 19. The type of bond formed by the sharing of electrons
Down
  1. 1. The state of matter with a fixed volume but no fixed shape
  2. 2. The chemical formula for water
  3. 3. The smallest unit of an element that retains its chemical properties
  4. 4. Vertical column in the periodic table
  5. 5. The total number of protons and neutrons in an atomic nucleus
  6. 6. Measure of the acidity or basicity of a solution
  7. 8. The chemical symbol for Gold
  8. 9. To lose electrons, a chemical process described by the acronym "OIL."
  9. 10. A substance that changes color in the presence of an acid or a base
  10. 11. A homogeneous mixture of two or more substances
  11. 12. Term for an insoluble solid formed during a chemical reaction
  12. 14. Element with atomic number 8