i) E- Atomic radius decrease across a period because E has the highest nuclear attraction hence electrons are attracted strongly.
ii) Group (IV), Period 4
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iii) Used in advertising sign lamps
iv)$ 2CNO_3(s) \rightarrow 2CNO_2(s) + O_2(g) $
johnmulu answered the question on April 12, 2017 at 11:44
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