Periodic Table

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Across
  1. 5. the number on an elements box which represents said elements average mass
  2. 6. the elements located on the left side of the periodic table
  3. 10. the part of an atom with a negative charge
  4. 12. what the elements are organized in which distributes their properties
  5. 13. what the electrons are placed on in an atom
  6. 14. the elements located on the right side of the periodic table
  7. 15. the way a material reflects light off of its surface
  8. 16. meaning that a material can be pulled into a long wire
  9. 17. the part of an atom with a positive charge
Down
  1. 1. a pure substance that cannot be broken down into other substances by chemical or physical means
  2. 2. 1 or 2 letters which represent an element on the periodic table
  3. 3. the part of an atom with no charge
  4. 4. word used to describe materials that can be rolled / hammered into flat surfaces
  5. 7. the number of protons in an atoms nucleus
  6. 8. made up of the nucleus, protons, neutrons, and electrons
  7. 9. the center of an atom which contains the protons and neutrons
  8. 11. the elements that form a zig-zag line, separating the metals and nonmetals on the periodic table