In the classification of the then known elements, Mendeleev was guided by two factors. What are those two factors ?
Lakhmir Singh Chemistry Class 10
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1st was that he put elements in the order of increasing atomic masses .
2nd was_he did grouping of elements having same properties.
2nd was_he did grouping of elements having same properties.
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Answer:
(i) increasing atomic masses
(ii) grouping together of elements having similar properties
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