Types of Bonds

Ionic Bonds: a bond between an anion (nonmetal) and a cation (metal)


1. Powdery appearance

2. Soluble in water

3. High melting point

4. Conductive as a liquid and when dissolved in water

The Examples: NaCl, MgO, CaCl2

Covalent Bonds: bonds formed when electrons are shared between atoms


1. Granular appearance

2. Sometimes soluble but not in every circumstance

3. Low melting point

4. Not conductive in any form

Examples: H2O, CO2, O3

Metallic Bonds: bond between metallic elements formed when valence electrons move freely


1. Shinny appearance

2. Non-soluble

3. High melting point

4. Conductive as a solid and liquid , but not dissolved in water because it is not possible

Examples: brass, copper

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