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Which of the following statements about the Modern periodic table is correct?
Science and Technology
Periodic Classication of Element
Question
Updated
19 Aug 2026
Which of the following statements about the Modern periodic table is correct?
A
Choose Your Answer
A
18 horizontal rows are known as Periods.
B
7 vertical columns are known as Periods.
C
18 vertical columns are known as groups.
D
7 horizontal rows are known as groups.
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