Counting Atoms and Elements

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Across
  1. 3. more than one element
  2. 4. first element
  3. 7. multiplier
  4. 8. periodic table
  5. 9. capital
Down
  1. 1. hydrogen+carbon
  2. 2. small number
  3. 3. addition/subtraction/multiplication
  4. 5. two or more atoms bonded
  5. 6. in elements