Lone Pairs of Electrons

(Polar molecules, Non-polar molecules, etc.)

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Carolina Lechuga
Posts: 33
Joined: Fri Sep 28, 2018 12:17 am

Lone Pairs of Electrons

Postby Carolina Lechuga » Sat Nov 17, 2018 2:05 pm

How can we tell if there must be, may be or cannot be one or more lone pairs of electrons on the central atom? ( questions 4.1 and 4.2 in the 6th edition textbook )

Nicholas Carpo 1L
Posts: 36
Joined: Fri Sep 28, 2018 12:19 am

Re: Lone Pairs of Electrons

Postby Nicholas Carpo 1L » Sat Nov 17, 2018 2:19 pm

To determine if there is a lone pair, you would generally look at the angles between atoms. If there is a smaller bond angle than expected, there must be electron repulsion resulting from lone pairs. However, lone pair repulsion could also cancel each other out, so you should base it on the placement of the other atoms.

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