Question

What is the combining capacity of silicon

Answer 1

Explanation:

Defination: Valency is defined as the combining capacity of the element. It is determined by the number of valence shell electrons present in the atom.

If the number of valence electrons is less than or equal to 4 so the valency is same as the number of electrons present.

If the number of valence electrons are more than 4 then the valency is 8-(the number of valence shell electrons).

Example:

(1)Silicon has atomic number 14. The electronic configuration of silicon is 2, 8, 4. The number of valence electrons is 4. So the valency is 4.

(2)Oxygen has atomic number 8. The electronic configuration is 2, 6. The valency is (8-6)=2.

Answer 2

its 4 .......combining capacity of silicon is 4