Listed below are the locations of certain elements in groups and periods of the periodic table. Arrange these elements in the expected order of increasing non-metallic character:

I. Element in the fourth period and group IV A


II. Element in the third period and group VI A


III. Element in the fourth period and group VI A


IV. Element in the six period and group III A


V. Element in the second period and group VII A


The correct order is:

I refers to the element Ge, II refers to the element S, III refers to the element Se, IV refers to the element Tl, V refers to the element F. Non-metallic character follows the order: Tl<Ge<Se<S<F

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