Question

From the following which is the false statement for the long form of the periodic table?

• A. it reflects the sequence of filling the electrons in the order of sub-energy level 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 ionic nature of the bond between any two elements.

Answer 1

The correct option is A it reflects the sequence of filling the electrons in the order of sub-energy level s, p, d and f

The sequence of filling the electrons in order of sub-energy levels is determined --by using Afbau's principle only not by the long form of -periodic table.

So, the correct option is $A$