Question

1. Discuss the trend in valency of the elements that one observes when they are arranged in the
increasing order of atomic number. Knowing the valencies of the constituent elements, how can one
arrive at the formula of a binary compound? Give three examples.​

Answer 1

Answer:

Explanation:

valency is the measure of the combining capacity of atoms or molecules. therefore it is the capacity of an atom of a single element to react and combine with particular numbers of atoms of another element.