XA2E2
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XA2E2
for VSEPR formula XA2E2, is it called bent?? is this just a tetrahedral shape with two missing?
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Re: XA2E2
AX2E2 is bent because the electron regions arrange themselves in a tetrahedral manner, but since there are only two actual bonds on the central atom, the geometry is bent. The angle is less than 109.5 degrees, however, because of the repulsion of the two lone pairs.
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Re: XA2E2
The molecule is called bent (v shaped) and looks very similar to a tetrahedral except for one of the electron lone pairs takes the place of where the third bonded molecule would have gone, which is why the angles are slightly less than 109.5.
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Re: XA2E2
Yes, it would be bent because electrons would position themselves on the same side of the atom rather than 180 degrees apart. This is due to the fact that lone pair - lone pair repulsion is strongest.
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Re: XA2E2
EMurphy_1L wrote:is AX3E also called bent
AX3E would be trigonal pyramidal because there is a tetrahedral electron arrangement (bond angles of 109.5 degrees), but the lone pair reduces the bond angle because of repulsion.
If you meant AX2E, yes, AX2E would be bent too. This is because there would be a trigonal planar electron arrangement, but the lone pair is not considered when naming the molecular shape.
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Re: XA2E2
AX2E2 is bent because the lone pairs do affect the positions of the atoms and thus the molecular shape.
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Re: XA2E2
Because the tetrahedral shape is unique, you can remove any 2 atoms and replace them with lone pairs and you would end up with a bent shape.
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