(Polar molecules, Non-polar molecules, etc.)
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- Posts: 108
- Joined: Thu Jul 25, 2019 12:16 am
How is XeF2 polar when it has 3 lone pairs? How do the dipole moments cancel when there are two lone pairs above Xe and one lone pair below Xe?
- Posts: 101
- Joined: Sat Jul 20, 2019 12:16 am
XeF2 is nonpolar. The three lone pairs are in the equatorial plane, while the two F form the :poles" at 180 degrees from each other.
Anne Tsai 1F
- Posts: 50
- Joined: Thu Jul 25, 2019 12:15 am
I think XeF2 is nonpolar because the fluorines are arranged so that the molecule has a linear shape, and thus there is no dipole moments.
- Posts: 118
- Joined: Sat Aug 17, 2019 12:17 am
Anne Tsai 1F wrote:I think XeF2 is nonpolar because the fluorines are arranged so that the molecule has a linear shape, and thus there is no dipole moments.
Could you explain how XeF2 has a linear shape when there are three lone pairs or why there are no dipole moments?
Claire Stoecklein 1E
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- Joined: Sat Jul 20, 2019 12:15 am
The molecular shape just refers to the arrangement of the bonds. The two fluorine atoms occupy one plane around the Xe atom, with the lone pairs occupying much of the surrounding three dimensional space. Therefore, the bond angles are 180 and linear.
Bradley Whitworth 4B
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- Joined: Sat Jul 20, 2019 12:17 am
XeF2 is nonpolar because the fluorine atoms are opposite of each other and their dipoles cancel out.
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