3. Metals and nonmetals generally form ionic bonds
with each other. Which of the following sets of
elements will most likely form an ionic bond?
9
A. Na, F
B. CI, F C. Na, K D. He, O

Na F

Explanation:

because electrovalent bond is present between them

When an atom or compound is oxidized, its properties change. For example, when an iron object undergoes oxidation, it is transformed because it has lost electrons. Unoxidized iron is a strong, structurally sound metal, while oxidized iron is a brittle, reddish powder. The diagram below illustrates what happens to an atom of iron as it is oxidized