Periodic Table

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Across
  1. 2. An atom with a positive or negative charge, depending on whether they lost of gained electrons
  2. 7. An Atom's ability to attract other electrons
  3. 9. Most reactive group of elements
  4. 10. A mix of nonmetals and metals, or somewhere in the middle of the two
  5. 11. Located in the middle of the periodic table and are metallic elements
  6. 14. Elements where inner shells are complete, but outer shell is not
  7. 19. Elements are in order of increasing atomic number, and in groups with similar properties
Down
  1. 1. Located on the right side of the periodic table, not a metal
  2. 3. A solid with a high conductivity level
  3. 4. Positively charged ion
  4. 5. The energy that is required in order to remove an electron from and atom or molecule
  5. 6. Published a periodic table and created the periodic law
  6. 8. Unreactive elements, with their outer shells full
  7. 12. The vertical column in the periodic table, also known as a family
  8. 13. A horizontal row of elements on the periodic table
  9. 15. Second most reactive group
  10. 16. Distance between an atom's nucleus and outermost shell
  11. 17. Negativity charged ion
  12. 18. Able to form salts, and known to be reactive