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Electron geometry for this is tetrahedral. There are two O-F single bonds, which makes 2 electron groups. There are two lone pairs around oxygen, which make up the last two electron groups. Molecules with four electron groups has a tetrahedral Electron geometry.
Trigonal pyramidal. As has 5 valence electrons. It forms single bonds with each of the F atoms, donating one electron to each bond. This leaves 2 unbonded electrons, or a single lone pair. Thus the molecule has 4 different groups attached to As, and the electron configuration is tetrahedral. A tetrahedral configuration with one lone pair results in a trigonal pyramidal molecular geometry.
False. In geometry it is helpful to group objects and look at similarities between them.
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