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Give two dissimilarities between Carbon and Silicon in their compounds. |
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Answer» The dissimilarities between carbon and silicon in their compounds are as follow: (i) Carbon atoms are small, and this allows two carbon atoms to come closer, so that electrons in p-orbitals can overlap forming multiple bonds. While the larger size of the Si atom means that the overlap of the Si p-orbitals is poor, and hence that Si p-p bonding is poor. (ii) Both carbon and silicon have the same common electronic configuration as 2s2 , 2p2 . But in silicon, the electrons are spread into the 3rd energy level, whereas in carbon, it is only to the 2nd energy level. This difference occurs because of carbon in the 2nd period, but silicon in the 3d period. |
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