What is the difference between mendleev\’s periodic table and modern periodic table.
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Mendleev,s ki periodic gap tha Modern perodic ma nhi ha
Meebdlevv ne hydrogen ko posntion nhi di thi modern m.mossely ne dedi r menndleev ne istopes k.nhi explain kiya or cobalt nickel ki exact postion nhi set kr pya orr missely e sono kamm kr diyee or atomicno , accoding element set kr diye