I believe it would be the first option. It forms iron oxide (rust) when exposed to moisture and air.
Answer:
Covalent bonds.
Explanation:
Diamond is organized in a giant lattice structure with strong covalent bonds between carbon atoms. Each carbon atom forms 4 bonds. Explanation: Each carbon atom has four electrons in its outer shell, all of which form covalent bonds that are strong and hard to break.
The answer is a because its not low ductile or gasst
I'm pretty sure its graph 4