Which of the following pairs will form ionic bonds with one another?
A)N,C
B)Na,Ca
C)Cs,Br
D)S,Cl
E)F,F

Question

Quizplus · Accepted Answer

Cs (cesium) is an alkali metal that tends to lose one electron to form a cation, and Br (bromine) is a halogen that is highly electronegative and tends to gain one electron to form an anion. The electrostatic attraction between Cs+ and Br- ions will form an ionic bond. The other choices are not likely to form ionic bonds because they either have similar electronegativities (N and C) or they are both nonmetals (S and Cl, F and F). Na (sodium) is an alkali metal like Cs, but Ca (calcium) is an alkaline earth metal that tends to form ionic bonds with other nonmetals, but not with Cs.

Which of the Following Pairs Will Form Ionic Bonds with One