Explain the merits of Moseley's long form of periodic table.

Explanation

Merits of Moseley.s long form of periodic table:
(i) As this classification is based on atomic number, it relates the position of an element to its electronic configuration.
(ii) The elements having similar electronic configuration fall in a group. They also have similar physical and chemical properties.
(iii) The completion of each period is more logical. In a period as the atomic number increases, the energy shells are gradually filled up until an inert gas configuration is reached (iv) The position of zero group is also justified in the table as group 18.
(v) The table completely separates metals and non-metals.
(vi) The table separates two sub groups, lanthanides and actinides, dissimilar elements do not fall together
(vii) The greatest advantage of this periodic table is that this can be divided into four blocks namely s, p, d and f-block elements.
(viii) This arrangement of elements is easier to remember, understand and reproduce.