Periodic table

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Across
  1. 1. I am a noble gas with 2 electrons and a sunny disposition.
  2. 6. You can find me in the carbon family in the fifth period.
  3. 8. I am a gas with 8 protons and 8 neutrons and help things burn!
  4. 9. I am a member of the nitrogen family with 16 neutrons.
  5. 11. My relative atomic mass is 35.5.
  6. 12. I am a member of the boron family and am the most abundant metal in the Earth’s crust.
  7. 13. I am a metal that is liquid at room temperature – ‘quicksilver’ is my ancient name.
  8. 15. I am the head of the fourth group and am known as the ‘basis of life’.
  9. 17. My atomic number is 79
  10. 21. I am a member of the halogen family with an atomic number of 53.
  11. 23. I am the second most abundant element in the Earth’s crust and have 14 neutrons.
  12. 25. My atomic number is 47 and I am used to make photographic film.
  13. 26. I am not really an alkali metal, but since I have only 1 electron I form an X ion.
Down
  1. 2. I am a member of the alkaline earth metals and have a great deal of flare!
  2. 3. I am the first element in the fourth period, an ingredient in many fertilizers
  3. 4. I am a metal with 28 electrons.
  4. 5. I am a gas with a mass number of 19.
  5. 7. I have 20 neutrons and am found in your teeth and bones.
  6. 10. I make up 78% of dry air and am the first initial of NPK.
  7. 14. I am a transition metal with 25 electrons.
  8. 16. I am the only element in the halogen family that is a liquid.
  9. 18. I am a silvery white metal used to make salt.
  10. 19. I am a transition metal with 30 electrons and tend to galvanize things!
  11. 20. I have 2 electrons in the first shell, 8 in the second shell, and 6 in the third shell.
  12. 22. I am a member of the carbon family often mistaken for the end of your pencil.
  13. 24. The nuclei of my atoms contain 26 protons.