Which group elements of the modern periodic table were placed along with alkali metals in Mendeleeff table?

I B

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II B

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II A

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I A

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Solution

The correct option is A I B
In Mendeleev's table he place alkaline earth metals ( elements of group IB) with alkali metals. This was a drawback later over came in modern periodic table. Thus the answer is option A.

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Which group of elements in the modern periodic table are referred as 'alkaline earth metals'?

Mendeleev predicted the existence of certain elements not known at that time and named two of them as eka-aluminium, and eka-silicon.

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