Chemical Bonds

1. Appearance: powdery or granular go to 2

    Appearance: shiny it is metallic

2. Melting point: does not melt easily go to 3

     Melting point: melts go to 4

3. Solubility in water: yes go to 4

     Solubility in water: no go to 4

4. Conductivity (liquid): yes it is ionic

     Conductivity (liquid): no it is covalent  

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