Periodic Table Crossword Puzzle

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Across
  1. 5. Group of gases with 8 electrons on outer shell and very stable
  2. 8. Somewhat good conductors of heat and electricity, somewhat malleable depending on situation.
  3. 9. There should be the same number of protons as these in an element
  4. 12. Poor Conductors of Heat and Electricity,Not shiny, Not malleable
  5. 13. Atomic Number represents the amount of these an element has
  6. 15. Family in the second column of the periodic table with important mineral nutrients
  7. 18. 2+ elements combined which can not be separated by physical bonds.
  8. 19. Formula used to make table salt.
  9. 20. Family that forms compounds with things such as proteins, fats, and carbohydrates
Down
  1. 1. Most abundant element in the universe.
  2. 2. Element needed for you to breathe
  3. 3. Biggest family of elements
  4. 4. Groups that group elements together based on similar characteristics
  5. 6. Very reactive family of metals and has potassium
  6. 7. Family containing one very reactive gas element.
  7. 10. Great Conductors of Heat and Electricity, and are Very Shiny; Malleable
  8. 11. Combination of 2+ things that can be separated by physical bonds
  9. 14. Table made by Dmitri Mendeleev to organize and group elements
  10. 16. Number at the top of the element square based on amount of protons created in element
  11. 17. Family of Non-metals that are highly reactive, Chlorine is in the family