How mendleeves disadvantages resolves by Morden periodic table
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because he told that in future more elements would be and left space for them. placed hydrogen separately
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In Mendeleev’s periodic table, the noble elements were not included in the table as they were not discovered at that time.In Modern periodic table, the noble elements were placed in group 18 as a last and separated group.In Mendeleev’s periodic table, elements with larger atomic weights were placed before elements with smaller atomic weight without any justified reason.In modern periodic table, all were arranged systematically with increasing atomic number and weight too.
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