Question

define the valency by taking examples of silicon oxygen chlorine and sulphur​

Answer 1

Answer:

The electronic configuration of the element is-K=2, L=8,m=4. According to the electronic configuration the valency is +4 or -4 because silicon can either gain 4 electrons or lose 4 electrons because it is a noble gas. Hence valency of silicon is 4 ••

Answer 2

Explanation:

Silicon: Atomic number of silicon is 14. The electronic configuration of the element is – K=2, L=8,m=4. According to the electronic configuration the valency is +4 or -4 because silicon can either gain 4 electrons or lose 4 electrons because it is a noble gas. Hence, valency of silicon is 4

Oxygen: valency of oxygen is 2 as it will gain 2 electrons to complete its octet.

Sulphur: Therefore, in this case in SO2 molecule the valency of sulphur is +4.

Chlorine : Valency is defined as the combining capacity of atoms or molecules. The atomic number of chlorine is 17 and the electronic configuration is 2, 8, 7. ... Therefore, the valency of chlorine is 1.