Anyone good at Chemistry?

Discussion in 'General Discussion' started by Allie, Oct 4, 2004.

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  1. Allie

    Allie Registered User

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    Anyone good at Chemistry?

    I've come across a small problem in some work I'm trying to do.

    If anyone's any good, whack your name down and I shall ask you

    Ta :D

    Allie.
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  3. Guest

    Depends on what your trying to make.......

    [​IMG]
  4. Allie

    Allie Registered User

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    Nothing, I need to know which two elemental atoms have hte same electronic structure, which theoreticaally, shouldn't be possible.

    I read somewhere that it's Lithium and Beryllium, but I'm not sure if htat's correct, or if it is correct, why this is the case... :(
  5. Jill

    Jill Registered User

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    *Has horrible flashbacks* :(

    AS Chemistry was too much for me (got a B - just) so I doubt I'll be much help..!
  6. Allie

    Allie Registered User

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    I think it may be. It's a question within a question. The exact question is:

    6. The Magnesium ion, Mg2+, has lost two electrons. The Sulphide ion, S2- has gained two electrons.

    A. What is the full electronic structure for the magnesium ion and the sulphide ion? (I've done this)

    B. Which elemental atoms have the same electronic structure?

    Surely the way that's worded means they can't be on about ions, as it specifically mentions atoms, and they're two different things!

    I'm gonna bitchslap my Chem. teacher!

    Also, that's exaclty what Li and Be are mate, that's why I'm confused! However, some website I was on before, which coincidentally has the exact same questions on as there are on this homework sheet, had them both listed as 1S2, 2S2 :spangled:
  7. Jill

    Jill Registered User

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    Is that what isoelectronic means, or is that something different?:spangled:
  8. Allie

    Allie Registered User

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    I'm not sure, we haven't done that yet.

    It's a twat, I've found everythign else on this homework sheet ridiculously easy, bar that question :cry:
  9. Allie

    Allie Registered User

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    I'll try that, cheers fella.

    Oh, also. What's the electronic structure for a Hydrogen ion? Surely hydrogen only having one electron, ionisation will mean this is now zero, yes?
  10. Jill

    Jill Registered User

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    That's always how I found Chemistry.. absofuckinglutely hated it.:cry: I would've died if I'd had to do the full A-Level. Some of it was piss easy, but then when I didn't understand something, I REALLY didn't understand it.

    Try Google, or go with the geek above!
    :dunce:
  11. Allie

    Allie Registered User

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    To be honest mate, I've loved Chemistry so far this year! :oops:

    I need a full A Level in it too though, and I need an A in it, so that has to be a good thing.

    CHeers for your help peeps! :D
  12. Allie

    Allie Registered User

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    Yeah I grasped that, I was on about a different question!

    Writing electronic configurations for ions, one of whuch was H-, which is surely zero?

    What did you get in Chemistry Andy, an A?
  13. Allie

    Allie Registered User

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    Fuck, yeah youre right :dunce:

    Cheers fella!
  14. Vin

    Vin Registered User

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    Dare say theres a few on here with extensive knowledge of chemistry.
  15. Sweeney

    Sweeney Registered User

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    :lol: :king:

    Beat me to that one Vin mate :D

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