Q.

Mendeleev's periodic table consists of _____groups and _____periods.

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a

4,3

b

9,6

c

8,6

d

6,8

answer is A.

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Detailed Solution

Mendeleev's periodic table consists of sixty-three elements arranged in increasing order of their atomic mass. The table consists of eight groups and six periods.

Hence, the correct answer is -'8,6'.

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