The element which has not yet been reacted with F2 is (a) Ar (b) Xe (c) Kr (d) Rn
The element which has not yet been reacted with F2 is
(a) Ar (b) Xe (c) Kr (d) Rn
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The element which has not yet been reacted with F2 is
(a) Ar (b) Xe (c) Kr (d) Rn