In the carbon family,elements other than carb | vedclass

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(B) Carbon has a small atomic size,which allows its $p$-orbitals to undergo effective side-to-side overlap,forming stable $p\pi-p\pi$ multiple bonds.

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large and diffuse,so they are too far apart to form effective side-to-side overlap

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(B) Carbon has a small atomic size,which allows its $p$-orbitals to undergo effective side-to-side overlap,forming stable $p\pi-p\pi$ multiple bonds. In the case of heavier elements in the carbon family (like $Si, Ge, Sn, Pb$),the atomic size is much larger. Due to the large atomic radii,the $p$-orbitals are more diffuse and the distance between the nuclei is greater,which prevents effective side-to-side overlap. Therefore,they do not form stable $p\pi-p\pi$ bonds.

In the carbon family,elements other than carbon do not form $p\pi-p\pi$ bonds because their atomic radii are very ........

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