Dots vs lines to represent electrons

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Or Fisher 1I
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Joined: Fri Feb 02, 2018 3:00 am

Dots vs lines to represent electrons

Postby Or Fisher 1I » Thu May 17, 2018 3:28 pm

Hello,
Can we use lines to represent two electrons when drawing lewis structures? Not just for bonds but also for lone pairs on atoms. We did not discuss this in lecture but in discussion this was brought up as an option. Thanks.

Chem_Mod
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Re: Dots vs lines to represent electrons

Postby Chem_Mod » Thu May 17, 2018 4:49 pm

Using lines around an atom to signify lone pairs is a shortcut that is not recommended. It does not take much extra time to draw in the lone pairs, and drawing in the lone pairs is more accurate, clearer, and will be more helpful in determining formal charge.

Brynne Keyser 1B
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Re: Dots vs lines to represent electrons

Postby Brynne Keyser 1B » Sat May 19, 2018 6:46 pm

The lines represent a bond between two atoms. The dots represent lone pairs. You can only use the lines to represent bonds and the dots to represent lone pairs. \

Hope this helps!

204917020
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Re: Dots vs lines to represent electrons

Postby 204917020 » Sun May 20, 2018 1:49 am

When you want to draw a lone pair, you should use two dots to represent that. The line is just used for bonds between atoms, also representing 2 electrons. The line representing a bond between two atoms shows the sharing of two electrons between the atoms.

004985802
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Re: Dots vs lines to represent electrons

Postby 004985802 » Sun May 20, 2018 2:20 pm

lines represent bonds not just pairs of electrons. denoting electron pairs as lines instead of dots would be inaccurate and confusing in showing atomic and molecular structure

Adam Yaptangco 1D
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Re: Dots vs lines to represent electrons

Postby Adam Yaptangco 1D » Sun May 20, 2018 3:25 pm

Lines should only be used for bonds while dots should only be used for lone pairs that are not bonded to another atom.

Rummel Requerme 1E
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Re: Dots vs lines to represent electrons

Postby Rummel Requerme 1E » Sun May 20, 2018 4:52 pm

I've seen both cases in which problems used lines and dots, respectively. It is recommended, however, to use lines so as to easily identify bonds and to make it look more organized than to stack dots on top of each other.

Jennifer Tuell 1B
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Re: Dots vs lines to represent electrons

Postby Jennifer Tuell 1B » Sun May 20, 2018 4:55 pm

I prefer using the dots because it is helpful to calculate formal charge and keep track of valence electrons.

Bijal Luhar
Posts: 33
Joined: Fri Apr 06, 2018 11:03 am

Re: Dots vs lines to represent electrons

Postby Bijal Luhar » Sun May 20, 2018 6:41 pm

Lines represent bonds. Dots represent lone electrons.


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