Counting Atoms and Elements

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Across
  1. 3. subatomic particle with a negative electrical charge
  2. 6. Chemically joined substance made from two or more different elements
  3. 8. a number in front of a chemical symbol that shows how many atoms or molecules are involved in the reaction.
  4. 10. a link between atoms in molecules or compounds
Down
  1. 1. subatomic particle with a positive electrical charge
  2. 2. A compound consisting entirely of hydrogen and carbon
  3. 4. a small number on the bottom right of a symbol that refers to the number of atoms of the element
  4. 5. A pure substance consisting of only one type of atom
  5. 7. a group of two or more atoms that are bonded together.
  6. 9. The basic unit of a chemical element