matter

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Across
  1. 2. 2 or more elements loosely combined
  2. 6. mixture with non-uniform components
  3. 7. mixture with uniform components
  4. 8. moving around the nucleus
Down
  1. 1. the center of an atom
  2. 2. 3 types of this everything is this
  3. 3. a group of atoms bonded together
  4. 4. one or more of one type of atom
  5. 5. everything is made of this
  6. 9. 2 or more elements chemically bound