Periodic Table

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Across
  1. 3. The first element discovered in modern times
  2. 6. I am found in organic chemistry
  3. 9. I have 53 protons
  4. 10. I am the element that is often found in batteries
  5. 11. I am found in swimming pools
  6. 16. The first metal element discovered in ancient times
  7. 18. Elements in the same group have the same number of ____ electrons
  8. 19. I have a molar mass of 209 amu
  9. 20. Has the largest atomic radius
  10. 22. Atomic radius ____ as you go up the periodic table
  11. 24. I am a noble gas in period 5
Down
  1. 1. As an ion, Sulfur has a charge of positive ___
  2. 2. Has the chemical symbol-Fe
  3. 4. I am a transition metal found in group 3, period 4
  4. 5. I am found in fruits and vegetables
  5. 7. My chemical symbol is W
  6. 8. To fulfill the octet rule, aluminum will ____ electrons
  7. 11. I am found in shells and bones
  8. 12. Alkali metals are found in group ____
  9. 13. Electronegativity ____ as you go up the periodic table
  10. 14. I am found in salt and am in group 1
  11. 15. I am the element that makes balloons fly.
  12. 17. I am a metalloid in period 3
  13. 21. As an ion, it has a charge of +1 and is in period 6
  14. 23. Elements in the same period have the same number of _____