Statement (A) : Horizontal rows in the periodic table are groups.
Statement (B) : Vertical columns in the periodic table are periods.
Statement (C) : In the modern periodic table groups are numbered from 1 to 18

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A and B are correct but c is incorrect.

A,B are incorrect and C is correct

All the above statements are incorrect

All the above statements are correct

answer is D.

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Detailed Solution

In the long form of periodic table, horizontal rows are known as periods and vertical columns are called groups. Total 18 groups are present in the modern periodic table.

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