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Which of the following is NOT a property of phosphorus? (A) Phosphorus reacts directly with halogens,...

Which of the following is NOT a property of phosphorus?

(A) Phosphorus reacts directly with halogens, forming trihalides and pentahalides.

(B) Phosphorus is an inert nonmetal.

(C) Phosphorus forms two common oxides, P4O6 and P4O10.

(D) Phosphorus exhibits oxidation numbers that are unusual for group 15 elements.

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