Write the chemical reactions for the formation of oxides,peroxides,and superoxides of alkali metals.

(N/A) The reaction of alkali metals with dioxygen depends on the nature of the metal:
$1$. Lithium forms mainly the oxide: $4 Li + O_{2} \rightarrow 2 Li_{2}O$
$2$. Sodium forms mainly the peroxide: $2 Na + O_{2} \rightarrow Na_{2}O_{2}$
$3$. Potassium,Rubidium,and Cesium form superoxides: $M + O_{2} \rightarrow MO_{2}$ (where $M = K, Rb, Cs$)