Question

What is valency? Find valency

Answer 1

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here's ur answer ✍✍✍

★ Valency can be defined as the combining capacity of at atom.

It can be calculated by finding the no. of electrons in the last shell of an atom.
eg:- the no. of electrons in an atom of oxygen is 2 ..so valency of oxygen is 2

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Answer 2

✨❇❇❇❇❇❇ANSWER❇❇❇❇❇❇❇✨

THE NUMBER OF ELECTRONS LOSES OR GAINED BY AN ELEMENT IS CALLED ITS VALENCY.

ℹℹℹℹℹℹℹℹℹℹ..........EXAMPLE... ℹℹℹℹℹℹℹℹ

1--CL HAS ELECTRONIC CONFIGURATION (2,8,7).
SO, IT GAINES ONE ELECTRON TO BE STABLE LIKE ARGON....
SO ITS VALENCY IS -1.✔✔


2--NA HAS ELECTRONIC CONFIGURATION (2,8,1)
TO BE STABLE LIKE NEON IT LOSES ONE ELECTRON SO ITS VALENCY IS +1.✔✔


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