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Suppose a gaseous mixtures of He, Ne Ar ...

Suppose a gaseous mixtures of `He, Ne Ar ` and `Kr` is irradiated with photons fo frequency appropriate to ionize Ar, What ions will be present in the mixture ?

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Initially `Ar^+` will be present , The `EA` value of ` Ar^+` ( 15,76eV) is almost same as `IE_1` for Ar. `IE_1` for `Kr` si ` 14.0eV` Soreaction ` Ar^+ _(-1)e^0 rarr Ar`, will occure exothermally and energy relased will ioise ` Kr` into ` Kr^+` .IE_1` valuer for `He`, Ne are large so tehse stoms will not react .
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