Bonds

Ionic Bonds - crystal form, non conductive as a solid, can conduct when dissolved, very hard, dissolves in water, melts at high temperatures, will conduct when melted, between a metal and a nonmetal

Covalent - mostly between nonmetals, not as hard as ionic, easier to melt, non conductive as solid liquid, and when dissolved

Metallic - bond between two metals, conduct electricity well in solid and liquid, bendable, melt at lower temperature than ionic, does not dissolve in water

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