Question

Define Valency by taking examples of silicon and oxygen​

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

Explanation:

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Answer 2

Answer:

$\huge\bold\red{Valency of silicon}$

4

Therefore, Silicon has 4 outermost electrons in its valence shell which is less than 8. Therefore, the valency of silicon atoms is 4.

$\huge\bold\red{Valency of oxygen}$

2

The valency of oxygen is 2, because it needs two atoms of hydrogen to form water