Worksheet 3.6 (Periodic Table)

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