Question

define valency by taking examples of silicon and sodium

Answer 1

Answer:

The number of electron gain,shared or loose by an atom to achieve its stability is known as its valency.

atomic number of silicon is 14

it's electronic configuration is 2,8,4

so its valency is 4

similarly atomic no. of sodium is 17

its electronic configuration is 2,8,7

so its valency is 2

Answer 2

In chemistry, the valence or valency of an element is the measure of its combining capacity with other atoms when it forms chemical compounds or molecules.

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