Periodic Table

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