The alkali metals which form normal oxide,per | vedclass

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(D) The alkali metals exhibit different behaviors when reacting with oxygen depending on their size and ionization energy. $Li$ primarily forms the no

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$K, Rb$

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(D) The alkali metals exhibit different behaviors when reacting with oxygen depending on their size and ionization energy. $Li$ primarily forms the normal oxide $(Li_2O)$. $Na$ forms the normal oxide $(Na_2O)$ and the peroxide $(Na_2O_2)$. $K, Rb,$ and $Cs$ form superoxides $(MO_2)$ as their stable products in excess oxygen. However,$K$ and $Rb$ are capable of forming all three types: normal oxides $(M_2O)$,peroxides $(M_2O_2)$,and superoxides $(MO_2)$. Therefore,$K$ and $Rb$ are the alkali metals that can form all three types of oxides.

The alkali metals which form normal oxide,peroxide,as well as superoxides are:

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