Question

what do you mean by valency.?​

Answer 1

Hey mate!!

In chemistry, the valence orvalency of an element is a measure of its combining power with other atoms when it forms chemical compounds or molecules. The concept ofvalence developed in the second half of the 19th century and helped successfully explain the molecular structure of inorganic and organic compounds.❤️

Answer 2

Answer:

the no. in the outermost shell