Question

Question 7. Define valency by taking examples of silicon and oxygen.​

Answer 1

Explanation:

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

Definition: 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 the same as the number of electrons present.

Definition: 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 the same as the number of electrons present. If the number of valence electrons is more than 4 then the valency is 8-(the number of valence shell electrons).

Definition: 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 the same as the number of electrons present. If the number of valence electrons is more than 4 then the valency is 8-(the number of valence shell electrons).Example:

Definition: 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 the same as the number of electrons present. If the number of valence electrons is 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.

Definition: 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 the same as the number of electrons present. If the number of valence electrons is 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 an atomic number 8. The electronic configuration is 2, 6. The valency is (8-6)=2.

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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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