The Periodic Table

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Across
  1. 2. You can find me in the same family as carbon in the fifth period
  2. 3. My atomic number is 47 and I am used to make photographic film
  3. 4. In my neutral atom I have 2 electrons in the first energy level, 8 in the second and 6 in the third
  4. 6. My atomic mass is 35.45 amu
  5. 8. I am the transition metal in period 4 with the greatest number of protons
  6. 11. I am the only nonmetal in group 14
  7. 12. I am the alkaline earth metal found in your teeth and bones
  8. 14. My atomic nunber is 79
  9. 15. I am not a metal, but am a member of the alkali metal family since I behave like them
  10. 17. I am the noble gas in period 1
  11. 19. I have 26 protons
  12. 20. I am the alkali metal found in table salt
  13. 22. I am the halogen in period 5
  14. 23. I am the lightest member of the halogen family
  15. 25. I am a transition metal which has 25 electrons in its neutral atom
Down
  1. 1. I am the first element in the fourth period and used in fertilizers
  2. 4. I am the only metalloid in period 3
  3. 5. I am the only metal that is a liquid at room temperature
  4. 7. I am the only member of family 16 that is a gas at room temperature
  5. 9. I am a metal with 28 electrons in its neutral atom
  6. 10. I am the only halogen that is a liquid at room temperature
  7. 13. I am a member of the alkaline earth metals used to make fireworks
  8. 16. I am a member of the same family as boron, and am the most abundant metal in the Earth's crust
  9. 18. I am the nonmetal member of family 15 that is not a gas at room temperature
  10. 21. I make up 78% of the air around you and am a member of family 15
  11. 24. I am a member of family 14 and period 6