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Answer» 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.
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