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  • Which of the following statements about the Modern Periodic Table is correct(a)It has 18 horizontal rows known as Periods(b)It has 7 vertical columns known as Periods (c)It has 18 vertical columns known as Groups(d)It has 7 horizontal rows known as groups

Which of the following statements about the Modern Periodic Table is correct:
(a) It has 18 horizontal rows known as Periods
(b) It has 7 vertical columns known as Periods
(c) It has 18 vertical columns known as Groups
(d) It has 7 horizontal rows known as Groups

Answers (1)

Ans (c)
Sol
According to Modern Periodic Table:
18 – Vertical Columns – known as Groups
7 - Horizontal Rows – known as Periods

 Hence option (c) is correct.

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