Question

question
which pair of elements will not form an ionic compound?
select the correct answer below:
o li and f
o na and o
o c and br
o ca and cl

Explanation:

Step1: Recall ionic compound formation

Ionic compounds form between metals and non - metals.

Step2: Analyze each pair

Li (metal) and F (non - metal) can form an ionic compound (LiF).
Na (metal) and O (non - metal) can form an ionic compound (e.g., Na₂O).
Ca (metal) and Cl (non - metal) can form an ionic compound (CaCl₂).
C and Br are both non - metals. Non - metals form covalent compounds through sharing of electrons, not ionic compounds.

Answer:

C. C and Br