Question

what is valency class9​

Answer 1

Answer:

The combining capacity of an atom of an element to form chemical bond is called its valency. The valency of an element is. (1) Equal to the number of valence electrons. (2) Equal to the number of electrons required to complete eight electrons in valence shell

Explanation:

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Answer 2

Answer:

The Correct Answer is mentioned below

Explanation:

In chemistry, an element's valence or valency is a measure of its ability to combine with other atoms to form chemical compounds or molecules.

For example, oxygen has six valence electrons, but its valency is 2. Some elements may have more than one combining power (or valency), while others have just one. For example, H →1; Mg→2; Al→3; C→4; N→3, and 5; P→3 and 5; O→2; S→ 2, 4 and 6; Cl→ 1; and Ne→0.