Various anomalies are removed in the following ways:
(1) The position for all isotopes of an element justified since they have same atomic number. [1 Mark]
(2) The position of certain elements which were earlier misfit like Co- 58.9 was placed before Ni- 58.7, are now justified because Co has lower atomic number than Ni. [1 Mark]
(3) Cause of periodicity explained due to repeatition of same electronic configuration and valence electrons after certain gap. [1 Mark]