Question

Aluminum reacts with oxygen to form Al2O3. Which pair of elements would most likely yield a compound with a similar formula?

a. In and S

b. B and F

c. Si and O

d. Zn and N

Answer 1

Check which pair of elements is matching the valency of Aluminium and Oxygen.

Indium(In) have the same valency of Aluminium (Al) and Sulphur (S) have the same of Oxygen (O).

find which pair of elements would most likely Yield a compound with a similar formula AlgO3 We have to check which of the pair of elements are having same valence electrons or valency to that of Aluminium (Al) and oxygen (o). is we know that the same group elements have the same Valence electrons. we have to check which of the ginen elements belong the same group of Aluminium (Group 13) and of orggen (Group 16) houp 13 Talence electrons = 3 Groupit Valency = 3 valence electron=6 Valency = -2 19 Valence eledon >4 then valency - Valence d electron-8 - 6-8=-2 Ga So from the given options only option has the peur of elements which have both the elements belonging to the Group 13 and Group 16. Or we cars say belonging to the same group of Aluminium and oxygen, a Alt3 02- Alg O3 Similarly Int's s² - Ing S3 (Indium sesquisulfide) Indium (111) sulfide