How many lone pairs are present in XeF2 molecule
Question
How many lone pairs are present in XeF2 molecule
Solution
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First, we need to understand the structure of the XeF2 molecule. XeF2 is a linear molecule due to the arrangement of fluorine atoms and the lone pairs of electrons in the symmetric arrangement.
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Xenon (Xe) is in Group 8 of the periodic table and has 8 electrons in its outer shell. Fluorine (F) is in Group 7 and has 7 electrons in its outer shell.
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In the XeF2 molecule, Xenon (Xe) is the central atom. It forms two bonds with two fluorine atoms. Each bond requires 1 electron from Xenon and 1 from Fluorine. So, 2 electrons of Xenon are used for bonding.
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Xenon started with 8 electrons. After forming two bonds with the Fluorine atoms, it has 6 electrons left. These electrons remain on the Xenon atom as lone pairs.
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Each pair of electrons forms one lone pair. Therefore, the XeF2 molecule has 3 lone pairs.
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