Each carbon atom is covalently bonded to four other carbon atoms. A lot of energy is needed to separate the atoms in diamond. This is because covalent bonds are strong, and diamond contains very many covalent bonds. This makes diamond's melting point and boiling point very high.
Answer:
Experimental group
Explanation:
i hopes this helps let me know if im wrong:)
Option d: copper.
Because copper is an element, not a mixture.
The answer would be metal
