Question

What physical and chemical properties of elements are used by mendeleev in creating his periodic table? List 2 observation which posed a challenge to mendeleev periodic law?

Answer 1

According to mendeleev periodic law, the characteristic property of the elements is based on their atomic weights.

the periodic table which was based on atomic weight is known as mendeleev's peiodic table.In this periodic table elements are arranged in increasing order of their atomic weight.

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Answer 2

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