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Dekalb Reads Assignment: 3.3 C [of ABC]

Families of elements

NON METALS

Read pages 91-94 and answer the questions

Use your own textbook. Score 3 points

  1. In how many different forms carbon is found? What are they?

    2.  

  2. What does the very famous Fullerence of Carbon consists of?

    3.  

  3. How many compounds does carbon form with other elements?

    4.  

  4. What is the formula for Glucose?

    5.  

  5. Green plants have chlorophyll. What is its formula?

    6.  

  6. What is the important component of Gasoline?
  7. What is rubber made of?
  8. Name the ions formed by Oxygen, Sulfur and Nitrogen. Write their symbols too.

    9.  

  9. How does Sulfur compounds smell? Where are they found?

    10.  

  10. What are halogens?

    11.  

  11. How is Chlorine useful to us?

    12.  

  12. What kills the bacteria in swimming pools?

    13.  

  13. Name the compound and its chemical formula that is added in the swimming pool for Chlorine.
  14. Describe elemental chlorine.

    15.  

  15. What is the chemical formula of Chlorine?
  16. Name the ion Chlorine forms. What is its formula.
  17. How is table salt formed.
  18. Describe fluorine.
  19. Describe Bromine.
  20. Describe Iodine.
  21. Describe the use of fluoride ion.
  22. Why do you need iodized salt.
  23. What are noble gases?
  24. Write a use of neon gas.
  25. How are the noble gases different from other elements.
  26. Why is Neon unreactive?
  27. Describe noble gases with reference to lost or gain of electrons?
  28. Describe the use of Helium and state the reason.

    29. .

  29. Name the gas that is filled in light bulbs.
  30. Name the semi conductors.

    31.  

  31. Describe semi conductors.
  32. Compounds of which semiconductor are used in the manufacture of heat resistant glass.
  33. Compounds of which semiconductor are used in fire retardants?
  34. Which semiconductor’s ability to conduct increases with exposure to light.
  35. How much % of the mass of earth’s crust is silicon?
  36. What is the chemical name of sand?
  37. Name the semiconductor used in the internal parts of computer.
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