Molecules that Violate the Octet Rule

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Chemistry

3 Terms

1
Odd number of electrons
This is pretty rare Ex. NO, NO2, ClO2, HO
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2
Less than an octet on a central atom
rare Ex. Beryllium (2 bonds) Boron (3 bonds)
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3
Molecules with more than 8 electrons on central atom (hypervalent)
common: Can only happen with period 3 atoms and above and the molecules attached usually don't have a large electronegativity
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