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The compound of Xenon with zero dipole moment is?

User Gagarine
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Final answer:

Xenon tetrafluoride (XeF₄) is the xenon compound with a zero dipole moment due to its symmetrical square planar structure which causes the dipole moments to cancel out.

Step-by-step explanation:

The compound of xenon with zero dipole moment is xenon tetrafluoride, or XeF₄. This compound has a square planar structure where the four fluorine atoms are symmetrically placed around the xenon atom at the corners of a square, and the lone pairs of electrons occupy the axial positions. Due to this symmetrical arrangement, the dipole moments cancel each other out, resulting in an overall dipole moment of zero. Xenon difluoride forms when xenon gas reacts with fluorine gas and then cools. It is a stable compound that exists in the form of colorless crystals at room temperature. It has a zero dipole moment because the molecule is linear and the bond dipoles cancel each other out. Other compounds of xenon with fluorine include xenon tetrafluoride (XeF₄) and xenon hexafluoride (XeF₆), which are also stable compounds.

User Hugerde
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Two things to consider here: the identity of the substituents and their arrangement around the central atom (Xe). A zero dipole moment results when the various dipoles of the bonds in the molecule cancel eachother out. This requires symmetry, which we have in abundance in XeF4. Each Xe-F bond has an identical dipole, but each as cancelled out by the bond opposite it, so the sum of dipoles from Xe-F bonds is zero. Also we need to consider the lone pairs, but as noted earlier, they are directly opposed to each other so it follows that they will cancel each other out too.

So the answer is XeF4. I hope this helps.

User Alexey Novakov
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