Question

(a) The number of electrons in the valence shell of a
halogen is .............A-1, B-3.C -5.D - 7.
(b) Electronegativity across the period ............. (increases/
decreases).
(c) Non-metallic character down the group
[increase/decreases).​

Answer 1

Answer:

(a)D-7, (b)increases, (c)decreases

Explanation:

Hope this'll help.

Answer 2

Answer:

a) 7 valence electrons

b) increases

c) decreases