Name the long periods in mendeleev periodic table? How many elements are present in each of these periods
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The long period in mendeleev period are sixth period is the longest period. And their are 32element are present.
Koushikshiva:
No your answer is wrong. 6th period is the longest period modern periodic table. It has 32 elements. But in Mendeleeve table 4th period is the longest period, i think it nearly has 17 elements.
Oo...... Sorry
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Answer:
4 and 5 are considered as long periods
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