Question

what is meant by valency​

Answer 1

Answer:

the combining power of an element, especially as measured by the number of hydrogen atoms it can displace or combine

Explanation:

Hope its help you

Answer 2

Answer:

According to My Concern ,

• The outer orbit of an Atom can contain 8 electrones to make that atom Stable or Noble .
• So , the number of Electrones that can be Gain or Loose by the outer orbit of that atom to make the atom Stable is known as the Valency .
• That outer orbital is known as Valence Orbital .

Example :- Number of electrones present is Oxygen is 8 .

               ⇒ So its Electronic configuration is -  k-2 , l-6

                 ⇒Now its outer orbital have 6 electrones .

               ⇒ To make the atom Stable , Outer Orbital need to gain 2 more  electrones ....

∴ So the Valency of Oxygen is now 2 .

Or You can Simply use this Definition ,

The valency of an element is the number of hydrogen atoms that can combine with or replace (either directly or indirectly) one atom of the element .

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