Answer:
Explanation:
6. No. of groups in the long form of the periodic table is 18.
7. The horizontal rows in the modern periodic table are called as b) Periods.
8. The vertical columns in the table are called as a) Groups.
9. The number of elements present in the shortest period is a) 1.
10. The longest period in the periodic table is b) 7th.
11. Scandium (Sc) and Calcium (Ca) belong to the following period: c) 4th period.
12. II A group elements are called as b) Alkaline earth metals.
13. In the long form of the periodic table, the number of groups under p and d blocks are b) 6, 10.
14. Both Lanthanoids and Actinoids belong to a) f-block.
