CHEMISTRY CROSSWORD - HOW WILL YOU REACT?

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Across
  1. 6. With this type of a change a new substance is produced.
  2. 7. Name for the table that arranges elements by atomic number.
  3. 8. An example of a physical property that can be observed.
  4. 10. The smallest unit of an element.
  5. 11. A negatively charged particle in the atom.
  6. 13. Cannot be broken down into a simpler substance.
  7. 14. A positively charged particle in the atom's nucleus.
  8. 15. A neutral particle in the atom's nucleus.
Down
  1. 1. Elements in the same group are in a _______ on the periodic table.
  2. 2. Elements that have a full outer shell.
  3. 3. Group of elements on the period table that is the least reactive.
  4. 4. With this type of change a new substance is not produced.
  5. 5. A row on the periodic table.
  6. 7. The identity of an element is determined by the number of these.
  7. 9. Two or more substances that combine as a uniform mixture.
  8. 12. A pure substance that is composed of two or more different elements that are chemically joined.