Question

Choose the correct answer from the options given below:
(i) In the periodic table alkali metals are placed in the group ___________
(a) 1
(b) 11
(c) 17
(d) 18

(ii) Which of the following properties do not match with elements of the halogen family?
(a) They have seven electrons in their valence shell.
(b) They are highly reactive chemically.
(c) They are metallic in nature.
(d) They are diatomic in their molecular form.

Answer 1

(i) (a) 1
Alkali metals are placed in group 1 (IA) in the periodic table.

(ii) (c) They are metallic in nature.
Halogens are non-metallic in nature, as they have the tendency to accept an electron to attain the noble gas configuration.