Crossword

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Across
  1. 4. It is a pure substance.
  2. 7. One unit of this is equal to Avogadro's number.
  3. 9. The measuring system that uses meters, grams, liters, etc.
  4. 10. It is a table of all the elements, arranged by their atomic number.
  5. 12. He is the scientist who made "6.022x10^23"
  6. 13. It is the simplest whole number ratio of a compound.
  7. 14. 6.022x10^23
Down
  1. 1. It is the first element in the periodic table.
  2. 2. It is the average mass of an atom found in the periodic table.
  3. 3. It is the total atomic mass present in a compound.
  4. 4. system The measuring system that uses inches, quartz,feet, etc.
  5. 5. It is a method of converting a unit to another unit in an organized manner.
  6. 6. It is the percentage of an element present in a compound.
  7. 8. It is the smallest unit of matter.
  8. 11. It is the simplest whole-number multiple of a compound