 Hybridization of PH3

Phosphorus forms three sigma bonds with hydrogen atoms and possesses one lone pair in PH3.

How many sigma bonds and lone pairs does phosphorus form in PH3?

Drago's Rule suggests that hybridization may be skipped if certain conditions are met. PH₃ qualifies as a Drago molecule because the central atom (phosphorus) is from the third period, it has a lone pair, and the electronegativity of phosphorus is lower than that of carbon.

What is Drago's Rule, and how does it apply to PH3?

PH3 is often described as having no hybridization. The 3p orbitals of phosphorus directly overlap with the 1s orbitals of hydrogen, forming sigma bonds.

Does PH₃ have a hybridization scheme?

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