structure of matter

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