Chemistry Vocabulary

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Across
  1. 4. The name given to Avogadro's number of a substance is a...
  2. 5. formulas The number of atoms that make up one molecule of a specific compound
  3. 6. figures The amount of numbers in a sequence that are actually important in the end
  4. 7. The average of all known isotopes of an element in grams
  5. 8. mass The resulting number from adding all the atomic masses of elements in a compound together
  6. 9. composition The percent, by mass, of each element in a compound
  7. 10. Commonly referred to as STP, or 2.14
  8. 11. The smallest unit of a certain material, ex: atoms, molecules, etc
Down
  1. 1. Simplest ratio of atoms in a formula
  2. 2. 6.02 x 10^23
  3. 3. Smallest whole number ratio that exists between cations and anions in an ionic compound, ex: NaCl