<span>Answer: Cobalt (Co). Carbon (C), Iodine (I), and Si (Si) are non-metal elements. A particular characteristic of non-metals is that they are brittle when they are in the solid form. Then they will break instead of bending. On the other hand, Cobalt (Co) is a metal. Most metals are ductile and malleable, which means that in their solid form they can be bend and transformed into thin sheets and wires without braking.</span>
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Sulfur and chlorine. Explanation: A covalent bond is formed by two non-metals with similar electronegativities. As a consequence, they share one or more pairs of electrons between their nuclei
