The placements of specific elements in the periodic table's groups and periods are listed below. Arrange these elements in the expected order of increasing non-metallic character:

Element in the fourth period and group IV A
Element in the third period and group VI A
Element in the fourth period and group VI A
Element in the sixth period and group III A
Element in the second period and group VII A

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IV < I < III < II < V

V < IV < II < I < III

I < II < III < IV < V

V < IV < III < II < I

answer is C.

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Detailed Solution

Elements in the expected order of increasing non- metallic character
IV < I < III < II < V .
From the data, I = Ge, II = S, III = Se, IV = Tl and V = F.
The metallic character of the elements increases down the group and decreases across the period from left to right. In a period, as you move from left to right, the non-metallic character gets stronger. So, F is the most non-metallic, and Tl is the least.

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