Question

There was no definitive place for isotope in Mendeleev's
periodic table.​

Answer 1

Answer:

Hydrogen, Chlorine and Other Isotope have not definite place

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Answer 2

Explanation:

Isotopes have different atomic masses but same chemical properties. Based on chemical properties, they were to be placed in same group, while based on atomic masses, they were used to be placed in different groups . Hence, there was no definite place for isotopes.

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