Which of the following statements about the Modern Periodic Table is c

1.	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
Answer» The answer is (c) It has 18 vertical columns known as Groups Modern periodic table have 18 groups and 7 periods. Columns are called groups and rows are called periods.

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

Answer»

The answer is (c) It has 18 vertical columns known as Groups