In the periodic table, which of the following trends is correct in a period?
(1) Electron affinity decreases
(2) Electronegative character decreases
(3) Electropositive character increases
(4) Non-metallic nature increases

Answer: Option 4
Explanation:
1) Electron affinity increases across a period because elements have a greater tendency to gain electrons to achieve a stable electron configuration.
2) Electronegativity generally increases across a period because elements have a greater ability to attract electrons towards themselves in a chemical bond.
3) Electropositive character generally decreases across a period, as elements have a greater tendency to lose electrons and form positive ions.
4) The nature of non metals generally increases across a period because elements on the left of the periodic table exhibit more metallic properties, while elements on the right exhibit more non-metallic properties.

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