Shape

[005388369]

During lecture on 11/15, Dr. Lavelle said molecules with the same formula will have the same general shape. Can someone list all of the different formulas and the corresponding general shape please? Thank you

[Pegah Nasseri 1K]

Some common formulas for general shapes are:
AX2 - Linear
AX3 - Trigonal Planar
AX4 - Tetrahedral
AX4E - Trigonal Bipyramidal
AX4E2 - Square Planar
AX3E - Trigonal Pyramidal
AX2E2 or AXE - Bent or Angular
AX6 - Octahedral

[Angus Wu_4G]

Here is an exhaustive list of all the shapes that I can think of:

AX2 - Linear
AX3 - Trigonal Planar
AX2E1 - Bent
AX4 - Tetrahedral
AX3E1 - Trigonal Pyramidal
AX2E2 - Bent
AX5 - Trigonal Bipyramidal
AX4E1 - Seesaw
AX3E2 - T-shaped
AX2E3 - Linear
AX6 - Octahedral
AX5E1 - Square Pyramidal
AX4E2 - Square Planar

[DesireBrown1J]

This photo is from the textbook of all the shapes we should know for test 2.

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Screenshot%202019-11-16%2017.24.28.png

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[Kayla Maldonado 1C]

This photo is from the textbook of all the shapes we should know for test 2.

[img]Screenshot%202019-11-16%2017.24.28.png[/img]

The book names what Dr. Lavelle called "bent" as "angular" which is the correct term to use?

[505316964]

I don't think it matters too much, but I'd go with bent to be safe, but the names are interchangeable.

[DesireBrown1J]

The VSEPR formula for pentagonal bipyramidal is AX₇.