Question

Without consulting the periodic table, select from each of the following sets, the elements belonging to the same group of the periodic table

• A. Z=11, 3, 20, 37
• B. Z=12, 38, 4, 88
• C. Z=31, 13, 81, 50
• D. Z=21, 39, 90, 57

Answer 1

The correct option is B

Z=12, 38, 4, 88

12 (Mg), 4 (Be), 38 (Si), 88 (Ra) belong to group 2 of the periodic table