Question

Name the element of group 13 which forms only covalent
compounds.
Explain why silicon shows a higher covalency than carbon?​

Answer 1

Explanation:

Aluminium element of group 13always form covalent compounds. silicon shows higher covalency than carbon because silicon has an empty d-subshell,so it can form more bond

Answer 2

Answer:

Baron form only covalent compound of group 13 .

Silicon shows a higher covalency than carbon because of the presence of vacant d-orbital. It shows a covalency upto six while carbon has no any vacant d-orbital. Carbon cannot have a covalency of more than four.

Some more about carbon and silicon :

Atomic number are as :

6 and 14 respectively .

Electronic configuration are as :

[ He ] 2 s² 2 p² and  [ Ne ] 3 s² 3 p²

Valence shell configuration :

2 s² 2 p² and   3 s² 3 p² .