DEFECTS OF LONG FORM OF PERIODIC TABLE

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 Defects of long form of periodic table

Although this periodic table provided a systematic way to study the chemistry of elements and removed most of the anomalies of Mendeleev and other Modern Periodic Table, yes it suffers from the following defects-

1.  In this periodic table also the position of hydrogen is not clear, although it is placed in a separate box just above the group I. 

2. Lanthanoids and actinoids has not been much will in the main body of the periodic table.


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