?A common form of elemental phosphorus is the tetrahedral P4 molecule, where all four

Chapter 8, Problem 8.11

(choose chapter or problem)

A common form of elemental phosphorus is the tetrahedral P4 molecule, where all four phosphorus atoms are equivalent:

At room temperature phosphorus is a solid.

(a) Are there any lone pairs of electrons in the P4 molecule?

(b) How many P P bonds are there in the molecule?

(c) Draw a Lewis structure for a linear P4 molecule that satisfies the octet rule. Does this molecule have resonance structures?

(d) On the basis of formal charges, which is more stable, the linear molecule or the tetrahedral molecule?

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