Question

The statement that is true for the long form of the periodic table is [IIT 1988]
A) It reflects the sequence of filling the electrons in the order of sub-energy levels s, p, d and f B) It helps to predict the stable valency states of the elements C) It reflects trends in physical and chemical properties of the elements D) It helps to predict the relative ionicity of the bonds between any two elements

Answer 1

c will be correct because it is arranged in that manner that we can study them easily