What is even odd series in periodic table in 4 ,5 and 6 periods. (In b – InterviewSolution

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What is even odd series in periodic table in 4 ,5 and 6 periods. (In byju study material it is given that Mendeleev failed to explain it in his table)

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What is even odd series in periodic table in 4 ,5 and 6 periods.

(In byju study material it is given that Mendeleev failed to explain it in his table)

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