Remembering Molecular Geometric Shapes

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

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MaryBanh_2K
Posts: 101
Joined: Wed Sep 18, 2019 12:21 am

Remembering Molecular Geometric Shapes

Postby MaryBanh_2K » Fri Nov 15, 2019 12:14 am

Is there a conceptual way of how you can determine the molecular geometric shape of a molecule or do we just have to memorize the amount of bonding and lone pairs of different molecular geometric shapes and assign the shape that way?

Jedrick Zablan 3L
Posts: 68
Joined: Sat Aug 17, 2019 12:17 am

Re: Remembering Molecular Geometric Shapes

Postby Jedrick Zablan 3L » Fri Nov 15, 2019 12:58 am

You could examine the amount of lone pairs would impact electron repulsion in turn impacting the shape.

Shail Avasthi 2C
Posts: 101
Joined: Fri Aug 30, 2019 12:17 am

Re: Remembering Molecular Geometric Shapes

Postby Shail Avasthi 2C » Fri Nov 15, 2019 1:09 am

Image

You could memorize, the 5 "parent" shapes (linear, trigonal pyramidal, tetrahedral, trigonal bipyramidal, octahedral), and then intuitively reason where the lone pairs would go in each arrangement, which will lead you to the final molecular shape.
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