Problem: These species do not obey the octet rule. Draw a Lewis structure for each, and state the type of octet-rule exception: (b) AsF4 −

FREE Expert Solution

Recall: An atom in a molecule that does not obey the octet rule either

1. has an odd number of electrons
2. has less than an octet of electrons
3. has more than an octet of electrons

Arsenic (EN = 2.18) is less electronegative than Fluorine (EN = 3.98) so As is the central atom. We first need to calculate the total number of valence electrons in the molecule:

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Problem Details

These species do not obey the octet rule. Draw a Lewis structure for each, and state the type of octet-rule exception: 

(b) AsF4


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Our tutors have indicated that to solve this problem you will need to apply the Octet Rule concept. You can view video lessons to learn Octet Rule. Or if you need more Octet Rule practice, you can also practice Octet Rule practice problems.

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.