point out the major defects in the mendeleev periodic table
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● the position of hydrogen was not justified
●isotopes were not discovered at that time
●Noble or inert gases were not discovered
●isotopes were not discovered at that time
●Noble or inert gases were not discovered
loveysingh:
tere se nhi pucha fukre
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he did not explain the position of certain elements, the rare earth metals and the isotopes this is the major defect of mendeleev periodic table
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