Which elements have expanded octets?
Understand the Problem
The question is asking about chemical elements that are capable of having expanded octets, which means they can accommodate more than eight electrons in their valence shells. This typically occurs in elements from the third period of the periodic table and beyond due to the availability of d orbitals.
Answer
sulfur, phosphorus, silicon, chlorine
The final answer is sulfur, phosphorus, silicon, and chlorine.
Answer for screen readers
The final answer is sulfur, phosphorus, silicon, and chlorine.
More Information
This expansion occurs because these elements have vacant d-orbitals in their valence shell that can hold additional electrons.
Tips
A common mistake is forgetting that only elements in Period 3 and beyond can have expanded octets due to their access to d-orbitals.
Sources
- Which elements can have an expanded octet? - Quora - quora.com
- 7.2: Exceptions to the Octet Rule - Chemistry LibreTexts - chem.libretexts.org
- Which elements have expanded octets? - UCLA Chemistry Forum - lavelle.chem.ucla.edu
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