The properties of metals and non-metals are given in the form of a table shown below. The properties mentioned here apply to the metals and non-metals generally. However, all metals and non-metals may not obey the given properties; there might be exceptions.
| Metals |
Non-metals |
| Contain 1-3 electrons in their valence shell |
Contain 4-9 electrons in their valence shell |
| Lose electrons to achieve stable electronic configuration |
Accept electrons to achieve stable electronic configuration |
| Possess low electronegativity |
Possess high electronegativity |
| Combine with oxygen to from metallic oxides which are generally basic in nature. |
Combine with oxygen to form non-metallic oxides which are acidic or neutral in nature. |
| Metal + Water→ Metal oxide + Hydrogen |
Non-metal + Water → No reaction |
| Metal + Acid → Salt + Hydrogen |
Non-metal + Water → No reaction |
