Answer-Which period and group in the long form of periodic table contain maximum number of elements?

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Periods in the periodic table  The 6th period contains the maximum number of elements 32 because it includes both the lanthanides 14 elements and transition metals. Other periods  1st period 2 elements. 2nd and 3rd periods 8 elements each. 4th and 5th periods 18 elements each.   Group in the periodic table  The question focuses on the group containing the maximum number of elements. In the IIInd group Group 3, the lanthanides and actinides are included in the 6th and 7th periods, but it does not specify that Group 3 exclusively contains all 32 elements of the 6th period. Technically, lanthanides and actinides are treated as separate blocks, part of Period 6 and 7, rather than explicitly assigned to a single group.    Explanation The 6th period contains 32 elements, the most in any period, and Group III contains elements extending into the f-block lanthanides. This aligns with the modern periodic table structure. While IIInd group does not fully represent all elements of Period 6, this option is closest.

Which period and group in the long form of periodic table contain maximum number of elements?

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