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Ch.9 - Molecular Geometry and Bonding Theories

Chapter 9, Problem 93c

An AB5 molecule adopts the geometry shown here. (c) Suppose the B atoms are halogen atoms. Of which group in the periodic table is atom A a member: (i) Group 15, (ii) Group 16, (iii) Group 17, (iv) Group 18, or (v) More information is needed?

Diagram of an AB5 molecule showing atom A at the center with five B atoms around it.

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everyone who asked for some of the atoms are halogen. I'm gonna ask for a group does eight. And the molecule belong to in the periodic table. If the B atoms are halogen, this means that each will have three non bonding electron pairs to get an octet. So this means there are three bonding pairs around a and no non binding pairs. If we come this up we have 2468, 10 12 14 16 18 2022 24. For a total of 24 valence electrons. Since we have three allergens, It's going to contribute to 21 balance electrons. Officer Track 21 From the Total Number of Valence Electrons. We get three valence electrons left and it's gonna be on A in the center Since we have three balance electrons on a. This means that a. Is in group three a. Or group 13 on the periodic table Because they have three balance electrons. Thanks for watching my video and I hope it was helpful.