which pair of atoms would form a covalent bond?\no calcium (ca) and bromine (br)\no rubidium (rb) and sulfur…

which pair of atoms would form a covalent bond?\no calcium (ca) and bromine (br)\no rubidium (rb) and sulfur (s)\no cesium (cs) and nitrogen (n)\no oxygen (o) and chlorine (cl)
Answer
Brief Explanations:
Covalent bonds form between non - metals. Oxygen and chlorine are both non - metals. In the other options, there are metals (calcium, rubidium, cesium) involved which tend to form ionic bonds with non - metals.
Answer:
Oxygen (O) and chlorine (Cl)