Chemistry Question!

Discussion in 'OT (OFF Topic) Forums' started by gina2201, Sep 9, 2008.

  1. gina2201

    gina2201 Hardcore MB Enthusiast

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    Q. What is the only non-metal to conduct?
     
  2. Dieselman

    Dieselman Banned

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    Conduct what.?

    I suspect you mean electricity, so it's water.

    Which in pure form doesn't conduct either.
     
  3. pammy

    pammy MB Club Veteran

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    Presume this is electricity in which case isn't it water?
     
  4. OP
    OP
    gina2201

    gina2201 Hardcore MB Enthusiast

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    Not Carbon then??

    (Sis Yr9 homework)
     
  5. stevesey

    stevesey Hardcore MB Enthusiast

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    I think the word element was missing from the question.

    And the answer is Carbon.

    Edit: Gina posted while I was typing - honest.
     
  6. Dieselman

    Dieselman Banned

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    Good point and stonking answer.
     
  7. Dieselman

    Dieselman Banned

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    Steve is correct. Carbon is a resistive conductor.
     
  8. whitenemesis

    whitenemesis MB Club Veteran

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    Graphite
     
  9. stevesey

    stevesey Hardcore MB Enthusiast

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    Technically a more accurate answer (diamonds don't conduct, do the other forms of carbon?)
     
  10. Bobby Dazzler

    Bobby Dazzler MB Club Veteran

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    IIRC 'black' carbon - like coal - can conduct but not very well, depending up on what it is.
     
  11. whitenemesis

    whitenemesis MB Club Veteran

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    Or a TTF-TCNQ plastic composite
     
  12. Dieselman

    Dieselman Banned

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    Now, that would be brilliant as a homework answer..:D
     
  13. whitenemesis

    whitenemesis MB Club Veteran

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    Selenium, as used in photocells
     
  14. Dieselman

    Dieselman Banned

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    Isn't selenium a metal.?

    What about silicon.?
     
  15. whitenemesis

    whitenemesis MB Club Veteran

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    Poly(ethyne)

    No, selenium is a non-metal

    In fact there are very many non-metals that conduct electricity
     
  16. stevesey

    stevesey Hardcore MB Enthusiast

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    Semiconductor.

    As is Selenium.
     
    Last edited: Sep 9, 2008
  17. HughJarse

    HughJarse Hardcore MB Enthusiast

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    Super cooled polymers - in fact its just a flow of electrons so a lot of things will conduct, they will just have a very high resistance and so generally not be useful.
     
  18. OP
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    gina2201

    gina2201 Hardcore MB Enthusiast

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    Thanks, sorry about the misleading question, it's how it was written on their question paper!!!
     
  19. whitenemesis

    whitenemesis MB Club Veteran

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    True but selenium is a non-metal whereas silicon is a metaloid
     
  20. stevesey

    stevesey Hardcore MB Enthusiast

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    I've noticed that on son/daughter's GSCE papers, questions are written for the syllabus and often very subjective or inaccurate. I have seen multiple choice questions where more than one answer it technically correct (if you have a little more understanding than is needed for the syllabus). And often all that is needed to is a simple modification to the question (like including the word "element"). Not like it was in my day...
     

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