Sagot :
Answer:
Ionic
Hardness: ionic bonds are strong and rigid and so ionic compounds tend to be hard, high melting point solids.
Melting Point:
Ionic solids typically melt at high temperatures and boil at even higher temperatures.
Explanation:
an ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. The compound is neutral overall, but consists of positively charged ions called cations and negatively charged ions called anions.