Problem: An AB3 molecule is described as having a trigonal-bipyramidal electron-domain geometry.How many nonbonding domains are on atom A?

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We are asked how many non-bonding domains atom A has when its molecule AB3 is described as having a trigonal-bipyramidal electron-domain geometry.


The possible electron domain geometries are:




The arrangement of electron domains about the central atom of an AXn molecule or ion is called its electron-domain geometry


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Problem Details

An AB3 molecule is described as having a trigonal-bipyramidal electron-domain geometry.

How many nonbonding domains are on atom A?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Molecular vs Electron Geometry concept. You can view video lessons to learn Molecular vs Electron Geometry. Or if you need more Molecular vs Electron Geometry practice, you can also practice Molecular vs Electron Geometry practice problems.

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Based on our data, we think this problem is relevant for Professor Gillespie's class at FIU.