| Ionic | Covalent | Metallic | |
|---|---|---|---|
| Diagram |  |
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| Bond Formation | Electrons are transferred from metal to non-Metal | Electrons are shared between two non-metals | Electrons are delocalized among metal atoms |
| Type of Structure | Crystal lattice | True molecules | 'Electron sea' |
| Physical State | solid | liquid or gas | solid |
| Melting Point | high | low | very high |
| Solubility in Water | yes | usually not | no |
| Electrical Conductivity | Yes, in solution or liquid | No | Yes, any form |
| Other | none | odorous | malleable, ductile, lustrous |
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