matter

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Across
  1. 2. A pure substance made from one type of atom.
  2. 5. the point a solid becomes a liquid.
  3. 8. the change of a liquid to a gas.
  4. 10. gas to a liquid.
  5. 13. state of matter where neither the volume, nor the shape is fixed.
  6. 15. ________ table organizes all the elements by atomic numbers by groups.
  7. 16. ______number is equal to the number of protons in an atom.
Down
  1. 1. _______symbol is the abbreviation for an element name.
  2. 3. part of the atom that has a negative charge.
  3. 4. state of matter where the volume, but not the shape are fixed.
  4. 6. the point a liquid becomes a solid.
  5. 7. anything that takes up space and has mass.
  6. 9. center of the atom that contains the protons and neutrons.
  7. 11. part of an atom with no charge.
  8. 12. part of the atom that has a positive charge.
  9. 14. state of matter where both the volume and shape are fixed.