Why does silicon consisting of 4 electrons in its valenced shell not share 4 electrons with other elements on bonding with each other as carbon does?

Asked by Yukti Jha | 30th Apr, 2014, 09:29: AM

Expert Answer:

Silicon has atomic number 14 and has 4 electrons in its valence shell.
It has vacant 3d orbitals in its valence shell due to which it can extend its covalence from four to five and six.
Important compounds of silicon are silicon dioxide, silicon tetrachloride, silicones, silicates and zeolites.
Carbon on the other hand does not have vacant d orbitals in the valence shell of carbon.
So carbon is unable to expand its octet beyond four.

Answered by Vaibhav Chavan | 7th May, 2014, 11:04: AM

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