The first attempt to classify elements systemically was made by :

Mendeleev

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Newland

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Lother Meyer

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Dobereiner

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Solution

The correct option is B Dobereiner
The first attempt to classify elements systemically was made by Dobereiner.
The triads of elements that showed similar chemical properties.
Other properties of the elements followed trends in which the value of the middle element of the triad was in between those of the end members.

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