Question

what is valency ?? write examples also....
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Answer 1

Answer:

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.

Explanation:

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

Answer 2

Answer:

Answer:Valency is the combining capacity of an Element. It is the number of electrons an atom of an element can gain,lose or share. The valency of an atom is equal to thevalence electrons, if it is 4 or less. If it is more than 4, the valency is equal to 8 minus the number of electrons in the outer shell

Answer:Valency is the combining capacity of an Element. It is the number of electrons an atom of an element can gain,lose or share. The valency of an atom is equal to thevalence electrons, if it is 4 or less. If it is more than 4, the valency is equal to 8 minus the number of electrons in the outer shellIt is the number of electrons an atom of an element can gain,lose or share. The valency of an atom is equal to the valence electrons, if it is 4 or less. If it is more than 4, the valency is equal to 8 minus the number of electrons in the outer shell. Example: Magnesium has electronic configuration 2,8,2.