Matter

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Across
  1. 6. molecules with 2 or more different types of elements
  2. 8. forces holding atoms together due to electron sharing/stealing
  3. 9. a substance that cannot be broken down into simpler substances
  4. 11. two or more atoms bonded together
  5. 13. mixture that looks uniform even under a microscope
  6. 14. notation for atoms in a molecule
Down
  1. 1. matter with a fixed composition; all particles in a substance are exactly the same
  2. 2. describes substances that can mix together
  3. 3. smallest unit of an element
  4. 4. has mass and takes up space
  5. 5. two or more substances not chemically bonded
  6. 7. mixture of metals
  7. 10. describes substances that cannot mix together
  8. 12. mixture not evenly mixed