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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Chemical Bonds | 19 mins | 0 completed | Learn Summary |
Lattice Energy | 9 mins | 0 completed | Learn Summary |
Lattice Energy Application | 11 mins | 0 completed | Learn |
Born Haber Cycle | 13 mins | 0 completed | Learn Summary |
Dipole Moment | 19 mins | 0 completed | Learn |
Lewis Dot Structure | 15 mins | 0 completed | Learn Summary |
Octet Rule | 25 mins | 0 completed | Learn |
Formal Charge | 6 mins | 0 completed | Learn Summary |
Resonance Structures | 8 mins | 0 completed | Learn |
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Bond Energy |
These species do not obey the octet rule. Draw a Lewis structure for each, and state the type of octet-rule exception:
(b) AsF4 −
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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