merits of modern preodic table

1.	merits of modern preodic table
Answer» \tThis classification is based on the atomic number which is a more fundamental property of the elements.\tSince this classification is based on the atomic number and not on the atomic mass, the position of placing isotopes at one place is fully justified.\tIt is easy to remember and reproduce. The systematic grouping of elements into four blocks: s, p, d and f has made the study of the elements more simple.\tThe position of some elements which were misfit on the basis of atomic mass is now justified on the basis of atomic number. For example, argon precedes potassium because argon has atomic number 18 and potassium has 19.\tThe lanthanoids and actinoids which have properties different from other groups are placed separately at the bottom of the periodic table.

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