Question

7. Observe the correlation in the first pair and complete the second pair:- Group 1: Alkali metals :: -------- : Halogens *

Group 2

Group 13

Group 17

Group 18​

Answer 1

Answer:

group 17 is the right answer

hope it's helpful

please add me on brainlist

Answer 2

Answer:

Halogens belong to group 17 of the periodic table.

Explanation:

Periodic table : It is a systematic arrangement of elements on the basis of increasing atomic number. The modern periodic table is given by Mendeleev. It has 7 periods and 18 groups. Periods move from left to right while groups move from top to bottom.

Halogens are placed in group 17 of the periodic table. It has 7 elements which include Fluorine (F), chlorine (Cl), Bromine (Br), Iodine (I) and astatine (As), and tennessine (Ts). These are reactive non- metals.