CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

How is valency of an element found?

What is the formula of finding valency


Solution

The valency is defined as the number of electrons gain or lost by an atom.
The electrons present in the last shell determine the valency of a particular element.
If,
Number of valence electrons ≤4: valency = number of valence electrons
Number of valence electrons >4: valency = 8 - number of valence electrons
If you consider the element ‘aluminium’ and try to write its electronic configuration, then it is 2, 8, 3 the valency is equal to 3.
However, for element ‘oxygen’ having electronic configuration 2, 6 the valency is 8 – 6 = 2.

I don't think there is a particular formula for finding valency.
To find the valency, just write the electronic configuration and then proceed as mentioned above

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image