Question

18. Based on electronic Configuration of elements, write formule of -
(a) Halides of Group 13 elements. (rep. elements by E and Halogens by X]
(b) Oxide of potassium.
(c) Oxide of Barium.​

Answer 1

Answer:

a=ex3

b=K2O

c=BaO

Explanation:

a=3 is atomic number

b= 2 is atomic number