Answer
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Step 1I will help you determine the molecular geometry of PH^3 (phosphorous trihydride) using the valence shell electron pair repulsion (VSEPR) theory.
Step 2
Determine the Lewis structure of PH^3: - Phosphorus (P) has 5 valence electrons, and each hydrogen (H) atom has 1 valence electron. - In the Lewis structure, phosphorus forms 3 covalent bonds with hydrogens, using 3 of its 5 valence electrons. - The remaining 2 valence electrons occupy a pair of non-bonding electron pairs.
Final Answer
The molecular geometry of PH^3 is trigonal pyramidal.
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