Question

what is valency? and define atomic number ​

Answer 1

Explanation:

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. Valency of a metal=No.

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Answer 2

Answer:

The valence or valency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules.

The atomic number of an atom is the number of protons in the nucleus of the atom.

(symbol: Z)

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