The periodic table

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12345678910111213141516171819
Across
  1. 3. The period table is this type of system.
  2. 5. This is a good conductor for electricity.
  3. 7. A lightweight metal used for cooldrink cans.
  4. 12. The compound that we breath out.
  5. 15. The last name of the man who first developed the periodic table.
  6. 16. Elements are organized into rows and columns based on what?
  7. 17. The element symbol for chlorine.
  8. 18. What element is used for glowsticks?
  9. 19. Reading the periodic table top to bottom is known as the?
Down
  1. 1. This is the 9th element on the periodic table.
  2. 2. The element used in washing powders.
  3. 4. These have properties of both metals and non-metals.
  4. 6. This is the 19th element on the periodic table.
  5. 8. The element symbol for magnesium.
  6. 9. Reading the periodic table from left to right is know as the?
  7. 10. One of the most common compounds.
  8. 11. The element name for "Si".
  9. 13. These are found mostly on the right hand side of the periodic table.
  10. 14. The element name for "Be".
  11. 16. The atomic number indicates how many _________ are in the atom.