Periodic Table

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Across
  1. 4. arsenic is a? (metal, nonmetal, metaloid
  2. 5. which side of the periodic table are metals on
  3. 7. property of metal, means to be shiny
  4. 8. a substance that is dull, brittle and a bad conductor
  5. 12. 2 valence electrons, +2 ions, reactive
  6. 13. Same # of valence electrons, chemical family
  7. 14. ___ metals have multiple oxidation states and have colorful ions
  8. 15. Show number of occupied energy levels
  9. 16. means 'repeats at regular intervals'
  10. 18. What is the periodic table based on?
Down
  1. 1. only 1 valence electron, most metallic character
  2. 2. Who is the father of the periodic table?
  3. 3. groups are also known as chemical ___
  4. 4. semimetals
  5. 6. how many elements are liquid at stp?
  6. 8. most stable
  7. 9. a substance that is conductive, malleable, and ductable
  8. 10. atomic size goes __ when you move right across a periodic table
  9. 11. 7 valence electrons, form -1 ions, reactive nonmetals
  10. 17. a property of metals which means you can be pulled into wires