What is Advantages of Long Form of Periodic Table?

(1) Since, atomic number forms the basis for classification of elements the anomaly of inversion of atomic weights (As⁴⁰, K³⁹, Ni⁵⁸, Te¹²⁸, I¹²⁷) is rectified in this table. (2) The Position of an element is the table is related to its electronic arrangement. (3) There is logical separation of Subgroups. The element in any vertical column resemble each other very closely. (4) Each Period ends with an inert element with completed outermost s and p sub-levels. (5) The table reflects very clearly the similarities, trends and differences among the groups and periods.