Which Elements Can Have Expanded Octets in How To

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Which Elements Can Have Expanded Octets. Phosphorous often has 5 orbitals (10 electrons) and sulfur often has 6 orbitals (12 electrons) because they are in the third period, but nitrogen and oxygen can never have expanded octets because they are in the second period and there is not such thing as a 2d orbital. Elements in the first or second row of the periodic table never have expanded octets.

9.9 Exceptions to the Octet Rule OddElectron Species
9.9 Exceptions to the Octet Rule OddElectron Species from www.youtube.com

Why can't elements in the second row have an expanded octet? Elements in the third row of the periodic table and beyond often exhibit expanded octets. Phosphorus pentachloride (pcl5) and sulfur hexafluoride (sf6) are examples of molecules that deviate from the octet rule by having more than 8 electrons around the central atom.

9.9 Exceptions to the Octet Rule OddElectron Species

Periodic table can or cannot expand the oct it. Elements in the first or second row of the periodic table never have expanded octets. You’ll know to draw an expanded octet when the central atom is bonded to more than 4 elements. Sulfur and phosphorus are common examples of this behavior.