Navigating The Periodic Table

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Across
  1. 1. I have 16 electrons total.
  2. 3. I am a member of group 14 often mistaken for the end of your pencil.
  3. 4. I have 20 neutrons and am found in your teeth and bones.
  4. 8. I am the first element in the fourth period used in making fertilizer.
  5. 9. My atomic number is 47 and I am used to make photographic film.
  6. 10. I am the only element in the halide family that is a liquid.
  7. 12. I am a noble gas with 2 electrons.
  8. 14. I have 26 protons
  9. 16. I am a metal with 28 electrons.
  10. 17. My atomic mass is 35.453.
  11. 18. I am a transition metal with 30 electrons useful in making paint.
  12. 19. My atomic number is 79.
  13. 21. You can find me in group 14 in the fifth period.
  14. 22. I make up 78% of the air and am found in the 15th group.
  15. 24. I am a member of group 15 with 16 neutrons.
  16. 25. I am a gas with an atomic mass of 18.99.
Down
  1. 1. I am a silvery white metal used to make salt.
  2. 2. I am a metal that is liquid at room temperature.
  3. 5. I am the head of group 14 known as the "basis of life".
  4. 6. I am a transition metal with 25 electrons.
  5. 7. I am a member of group 13 and am the most abundant metal in the Earth's crust.
  6. 11. I am not really an alkali metal, but since I have only 1 electron I behave like them
  7. 13. I am the 2nd most abundant element in the Earth's crust and have 14 neutrons.
  8. 15. I am a gas with 8 protons and 8 neutrons.
  9. 20. I am a member of the alkaline earth metals used to make fireworks and medicines.
  10. 23. I am a member of the halide family with an atomic number of 53.