Linear

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Fatima Valenzuela 3k
Posts: 93
Joined: Fri Sep 29, 2023 12:24 pm

Linear

Postby Fatima Valenzuela 3k » Fri Nov 17, 2023 10:51 pm

HI! Can someone explain how to know when a molecule is linear or not? Does it matter if it has a negative or positive charge? This weeks homework is asking questions on it.

For example, Which molecules are linear?

NO-2
XeF2
BeCl2
SF2

isaiah_granados_2l
Posts: 104
Joined: Wed Nov 18, 2020 12:31 am

Re: Linear

Postby isaiah_granados_2l » Fri Nov 17, 2023 11:09 pm

Hi,

the first thing you can do is find the lewis structures of each of the elements. Make sure the formal charge of the atoms matches the overall charge of the molecule. Using the VESPER formula you would find the amount of atoms that are bounded to the central atom and the number of lone pair electrons that are bounded to the central atom. Next, you would use the chart for bond angles to see what types of bonds are created have on the overall shape. Hope that helps!

105717435
Posts: 83
Joined: Fri Sep 29, 2023 11:57 am

Re: Linear

Postby 105717435 » Wed Nov 22, 2023 2:25 pm

Another way to determine if a molecule is linear is if the formal charges are equal like in O=C=O assuming there are 4 lone pairs on each oxygen molecule while carbon has a formal charge of zero and no lone pairs there is no distortion caused by lone pairs that makes the bonds linear.


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