Why does magnesium not react with alkali?

In chemistry, amphoteric substances refer to substances that can react with both acids and bases. For example, Zn, Al, Sn, Pb, be, Cr (commonly known as amphoteric metal) and most of the metals (metaloids) can produce amphoteric oxides or hydroxides.
Another kind of amphoteric substance refers to amphoteric molecules that can receive and provide protons. For example, amino acids and proteins have amino groups that can receive protons and carboxy groups that can provide protons. Water and ammonia molecules that can dissociate themselves are also amphoteric molecules. Weak acid salts (such as NaHCO3) are also.




The standard electrode potential of alkali metal simple substance is very small and has strong reaction activity. It can directly form ionic compounds with many non-metallic elements, react with water to generate hydrogen, and reduce many salts (such as titanium tetrachloride). Except lithium, all alkali metal simple substance can not be directly combined with nitrogen gas.