Question

Define: Atomic number and Valency.​

Answer 1

Answer:

Define Valency

The number of bonds that an atom can form as part of a compound is expressed by the valency of the element. We all know how electrons in an atom are arranged in shells/orbitals. Valence electrons are those electrons which are present in the outermost orbit of the atom

Explanation:

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

Answer 2

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Atomic number is the fundamental properties of an atom. ... Atomic number is denoted by 'z'. Atomic number is equal to the number of protons present in an atom.

The combining capacity of the atoms in a element is known as valency.