Question

why Mendéleev not give position to isotopes in his periodic table ?​

Answer 1

Answer:

According to Mendeleev's Periodic Law, isotopes of an element must be given separate places in the periodic table because they have different atomic masses. It does not explain the electronic arrangement of elements.

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Answer 2

Answer:

According to Mendeleev's Periodic Law, isotopes of an element must be given separate places in the periodic table because they have different atomic masses. It does not explain the electronic arrangement of elements