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.
To learn more about valence electrons visit:
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The valence electrons are in the s-orbital.
How does one determine the identity and structure of an unknown compound? This is not a trivial task. Modern x-ray and spectroscopic techniques have made the job much easier, but for some very complex molecules, identification and structure determination remains a challenge. In addition to spectroscopic information and information obtained from other instrumental methods, chemical reactions can provide useful structural information, and physical properties can contribute significantly to confirming the identity of a compound.
In this experiment, you will be asked to identify an unknown liquid, which will be either an alcohol, aldehyde, or ketone. Identification will be accomplished by carrying out chemical tests, called classification tests, preparing a solid derivative of the unknown and determining its melting point (MP), making careful observations, and analyzing the NMR spectrum of the unknown.
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