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Topic: lewis dot structures  (Read 14552 times)

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studygirl

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lewis dot structures
« on: June 22, 2005, 02:05:52 AM »
Please can someone explain how to draw them, i am so confused, the more i read about it, the more i get confused.
i am having problems understanding how to draw lewis dot structures for
species such as Ca3Po4,
so do i?


                         pO-  Ca-Ca-Ca -Po
                                   l        l
                                  Po      Po

does it have to be in order??? and where do the dots go?
and how many, okay so i go to the periodic table and look up
what group they are under so H would be one so it gets one dot,
but do i put how many dots they need around each one???
please can someone explain this , i will be extremely appreciative.
thank you
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Offline Mitch

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Re:lewis dot structures
« Reply #1 on: June 22, 2005, 03:06:57 AM »
Draw PO43- first.
« Last Edit: June 25, 2005, 12:49:38 PM by Mitch »
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Offline Borek

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Re:lewis dot structures
« Reply #2 on: June 22, 2005, 03:33:57 AM »
Mitch probably meant PO43-.
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Offline xiankai

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Re:lewis dot structures
« Reply #3 on: June 22, 2005, 06:58:51 AM »
and studygirl prolly meant Ca3(PO4)2
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Offline Winga

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Re:lewis dot structures
« Reply #4 on: June 25, 2005, 04:56:58 AM »
Let me try...
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Offline lemonoman

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Re:lewis dot structures
« Reply #5 on: June 25, 2005, 04:02:37 PM »
This topic went off the hook.  QUICKLY lol...

Looks good Winga.  Even got the stereochemistry in there.  Studygirl probably realizes that that's NOT a lewis dot structure - so I won't need to point that out  ;D

P.S. I AGREE that there is not much good info on Leiws Dot Structure Tutorial stuff anywhere...I honestly was confused, until midway through first-year university  :-[
There's so many exceptions...and little nuances and intricacies...so keep at it.  One of the best places I've found, is from a professor Chieh at my University.  Check it out, unless you've already seen it: http://www.science.uwaterloo.ca/~cchieh/cact/c120/dotstruc.html

Best of luck, and we're here for ya.

Awwwwwwww lol
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