Question

Which of the following clement pairs will form an ionic bond?

Pair
P	Elements of Group 1 & Group 2
Q	Elements of Group 14 & Group 16
R	Elements of Group 2 & Group 17
S	Elements of Group 15 & Group 18

Options

• P

• Q

• R

• S

Answer 1

R

Explanation:

An ionic bond forms when electrons are transferred from a metal to a non-metal.

Pair R (Group 2 & Group 17): This works because Group 2 elements are metals (which lose electrons) and Group 17 elements are non-metals (which gain electrons). This “give and take” creates the strong attraction needed for an ionic bond.