Question
Which of the following statement 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.
Solution
(c) It has 18 vertical columns known as groups.
In the modern periodic table, there are 18 vertical columns known as groups.
Is there an error in this question or solution?
Solution Which of the Following Statement 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. Concept: The Modern Periodic Table.
