Given what we know, we can confirm that when forming an expanded octet, selenium hexafluo
ride will hold 6 pairs of shared electrons around its center selenium atom.
<h3>What is an expanded octet?</h3>
- An expanded octet is when an atom can hold more than 8 valence electrons in its outer shell.
- This is possible for those elements in period four of the periodic table.
- Elements that are capable of this form what we call hypervalent compounds.
Therefore, given that during an expanded octet formation, the central atom is capable of holding more than 8 valence electrons in its outer shell, the central atom of a selenium hexafluo
ride compound will have 12 electrons being shared, which results in 6 pairs, making C the correct answer.
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