paula tawils science crossword puzzle

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Across
  1. 1. a stable subatomic particle occurring in all atomic nuclei, with a positive electric charge
  2. 4. what is AU on the periodic table?
  3. 6. a compounds smallest unit.
  4. 8. a stable subatomic particle with a charge of negative electricity, found in all atoms and acting as the primary carrier of electricity in solids.
  5. 10. When two or more atoms of different elements join together it is called a...
Down
  1. 2. What is N on the periodic table?
  2. 3. a capital letter that represents a element.
  3. 5. a simple substance that cant be changed.
  4. 7. a elements smallest unit.
  5. 9. This amount can represent either the relative number of molecules.