Chemistry Review 1: Matter

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Across
  1. 2. The basic unit of a chemical element
  2. 4. The change in state from solid to liquid
  3. 7. A type of vaporization in which liquid that is below the surface changes to a gas as a result of heating
  4. 8. The number of protons in the atom
  5. 11. Exact relative mass of a particular isotope of an element
  6. 14. The positively charged central core of an atom
  7. 15. The change of state from gas to a liquid
  8. 17. The state of matter in which materials have neither a definite shape nor definite volume
  9. 18. Atoms of the same elements that differ in the number of neutrons they contain
  10. 19. The change of state from a gas to a solid
  11. 21. The change of state from liquid to solid
  12. 23. The state of matter in which materials have definite shape and a definite volume
  13. 24. Positively charged particles within an atom
Down
  1. 1. Anything that has mass and takes up space
  2. 3. The average of the mass of the isotopes of an atom
  3. 5. The change of state from a solid to a gas
  4. 6. The change of state from a liquid to a gas
  5. 9. A type of vaporization that takes place slowly on the surface of a liquid
  6. 10. A measure of how much matter occupies a given amount of space; i.e. mass/volume
  7. 12. Neutral particles within an atom,; ie they carry no charge
  8. 13. Negatively charged particles within an atom
  9. 16. The state of matter in which materials have a definite volume but not a definite shape
  10. 20. A pure substance that consists entirely of one type of atom
  11. 22. A positively or negatively charged atom