Which element does not show allotropy:

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(A) Allotropy is the property of an element to exist in two or more different physical forms in the same physical state. In Group $15$ elements,nitrog

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$N$

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(A) Allotropy is the property of an element to exist in two or more different physical forms in the same physical state. In Group $15$ elements,nitrogen $(N)$ does not show allotropy due to its small size and high electronegativity,which leads to the formation of stable $N \equiv N$ triple bonds,resulting in a diatomic $N_2$ molecule. Other elements like phosphorus,arsenic $(As)$,antimony $(Sb)$,and bismuth $(Bi)$ exhibit allotropy.

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