Question

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

Answer 1

Merits of Moseley’s long form of periodic table:

• As this classification is based on atomic number, it relates the position of an element to its electronic configuration. 
• The elements having similar electronic configuration fall in a group. They also have similar physical and chemical properties. 
• 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. 
• The position of zero group is also justified in the table as group 18.
•  The table completely separates metals and nonmetals. 
• The table separates two sub groups. lanthanides and actinides, dissimilar elements do not fall together.
• The greatest advantage of this periodic table is that this can be divided into four blocks namely s, p. d and f-block elements. 
• This arrangement of elements is easier to remember, understand and reproduce.