Name all the elements of group 15 of periodic table.

Name all the elements of group 14 of periodic table.

Name all the elements of group 16 of periodic table.

Name all the elements of group 17.

State true or false: The elements of group 17 of the periodic table are called halogens.

The elements of same group of the periodic table have

The elements of same group of the periodic table have

Name or state with reference to the elements of the modern periodic table. The formula of the sulphite of the element in period-3, group 1 [IA].

Name or state with reference to the elements of the modern periodic table. The character of the hydroxide of the element in period-3 group 13 [IIIA].

Name the element with reference to the elements of the modern periodic table. The group whose elements show zero valency.