PDS Science Fair Chemistry

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Across
  1. 6. smallest unit of an element
  2. 7. Substances with a pH less than 7.
  3. 8. indicates the number of electron shells on the periodic table
  4. 10. Adjective used to describe substances that do not mix with water.
Down
  1. 1. Substances with a pH greater than 7 and can dissolve in water.
  2. 2. two or more atoms chemically bonded together
  3. 3. Process of chemical analysis, measuring the acidity or alkalinity of a substance through the addition of a titrant.
  4. 4. Substances with a pH greater than 7.
  5. 5. indicates the number of electrons in the outermost shell on the periodic table
  6. 9. pure substance made of one element