IDNLearn.com: Your destination for reliable and timely answers to any question. Whether it's a simple query or a complex problem, our experts have the answers you need.

some elements have variable valencies .give reason​

Sagot :

Answer:

Some elements have variable valencies because of the different electronic configurations. An atom of an element can sometimes lose more electrons than are present in its valence shell i.e. loss from the penultimate shell and hence exhibit more than 1 or variable valency.

Explanation:

Hope it helps.