What was the Mendeleev’s basis for the classification of elements ?
Lakhmir Singh Chemistry Class 10
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u can write it in this way
1st point _elements were arranged in order of increasing atomic masses.
2) there were 7 period and 8 group
3) grouping of elements having same properties
1st point _elements were arranged in order of increasing atomic masses.
2) there were 7 period and 8 group
3) grouping of elements having same properties
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