VSEPR notation

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

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Katherine Wu 1H
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VSEPR notation

Postby Katherine Wu 1H » Sat Nov 16, 2019 10:56 pm

For NO3-, would the VSEPR notation be AX3 or AX4 and why?

JChen_2I
Posts: 107
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Re: VSEPR notation

Postby JChen_2I » Sat Nov 16, 2019 11:01 pm

AX3 because there are 3 atoms (3 oxygens) attached to the central atom (nitrogen)

HanaAwad_4B
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Joined: Fri Aug 30, 2019 12:18 am

Re: VSEPR notation

Postby HanaAwad_4B » Sat Nov 16, 2019 11:06 pm

The notation would be AX3 because there are three atoms attached to Nitrogen in the Lewis structure. The amount of bonds does not really matter, but the amount of atoms surrounding the central atom is relevant. The geometry is trigonal planar.

Aarja Pavade 1H
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Joined: Sat Aug 17, 2019 12:18 am

Re: VSEPR notation

Postby Aarja Pavade 1H » Sat Nov 16, 2019 11:54 pm

Single, double, and triple bonds are considered single regions of electron density in the VSEPR model, so even though there is a double bond between N and O, the VSEPR notation would still be AX3.

Jillian C 4C
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Re: VSEPR notation

Postby Jillian C 4C » Sun Nov 17, 2019 1:05 am

It is AX3 because there are three oxygen atoms attached to the central atom of nitrogen.

Kehlin Hayes 4C
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Re: VSEPR notation

Postby Kehlin Hayes 4C » Sun Nov 17, 2019 10:04 am

The formula would be AX3 because there is one central atom of N and three surrounding O with no lone pairs

MaggieHan1L
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Re: VSEPR notation

Postby MaggieHan1L » Sun Nov 17, 2019 2:18 pm

A for the central atom. X for the bonded atoms. E for the lone pairs.

Siya Shah 1J
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Joined: Sat Aug 17, 2019 12:15 am

Re: VSEPR notation

Postby Siya Shah 1J » Sun Nov 17, 2019 2:31 pm

The formula would be AX3 because there are three regions of electron density surrounding the central atom. They are all bonded pairs of electrons, so the formula would include X3. If any of the regions of electron density included lone pairs of electrons, you would have to use the E part of the formula.

Lauren Sanchez 3D
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Joined: Sat Aug 24, 2019 12:17 am

Re: VSEPR notation

Postby Lauren Sanchez 3D » Sun Nov 17, 2019 2:35 pm

NO3- would have the notation AX3 because the central atom has 3 atoms bonded to it. If there are any lone pair e-, then the E part of the notation would have to be used.


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