Question

What are the achievements of Mendeleev's periodic table? What was the basis of classification in it
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Answer 1

Answer:

Mendeleev left a number of gaps in his table to accommodate the new elements which would be discovered later on. So mendeleev boldly perdicated the existence of some more elements. He even predicted the properties of some of these elements and named themn as Eka-boron, Eka-aluminium and Eka-silicon respectively.

Explanation:

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