I.O.M. Unit Test Extra Credit

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Across
  1. 1. A change that results in the formation of a new substance.
  2. 4. The part of the atom that contains most of its mass.
  3. 5. The vertical columns on the periodic table where elements have similar properties.
  4. 8. The particles that must be equal on both sides of a balanced chemical equation.
  5. 9. The temperature at which a liquid changes into a gas.
  6. 12. Highly reactive metals with one valence electron, such as sodium.
  7. 14. A positively charged subatomic particle found in the nucleus.
  8. 16. A product that may escape during a chemical reaction in an open container.
  9. 18. Matter made of only one type of particle with a fixed composition.
  10. 20. The ability of a metal to be hammered or rolled into thin sheets.
  11. 22. A neutral subatomic particle found in the nucleus.
  12. 23. The smallest unit of matter that retains the properties of an element.
Down
  1. 1. The law stating that matter cannot be created or destroyed.
  2. 2. The property found by dividing mass by volume and used to identify substances.
  3. 3. A negatively charged subatomic particle found outside the nucleus.
  4. 6. A mixture that is not evenly mixed throughout.
  5. 7. A change in size, shape, or state that does not create a new substance.
  6. 10. A substance made of two or more elements chemically combined.
  7. 11. The amount of matter in an object.
  8. 13. A mixture that is evenly mixed throughout.
  9. 15. The outer electrons that determine how reactive an element is.
  10. 17. The horizontal rows on the periodic table.
  11. 19. The amount of space an object takes up.
  12. 20. Anything that has mass and takes up space.
  13. 21. What happens to particles as they absorb heat and move farther from each other.