structure of matter

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Across
  1. 3. the combining capacity of an element or a group
  2. 5. early scientists are called
  3. 8. -smallest particle of an element
  4. 9. chloride - elements which make up common salt
Down
  1. 1. the Latin name of iron
  2. 2. -the one who first suggested the English alphabet system to represent elements
  3. 4. two or more elements or compounds mixed together where there is no chemical change
  4. 6. - a substance formed by the chemical combination of two or more elements in a fixed proportion
  5. 7. used to represent elements