Which of the following statement is correct?
Correct answer: B. Generally, the oxidizing character of elements increases across a period.
- A. Generally, the reducing character of elements increases across a period.
- B. Generally, the oxidizing character of elements increases across a period.
- C. Generally, the basic character of oxides decreases down a group.
- D. All are correct.
Explanation
The correct answer is Option B: 'Generally, the oxidizing character of elements increases across a period.' This is because as you move from left to right across a period, elements become more non-metallic and have a greater tendency to gain electrons, thus enhancing their oxidizing ability.Option A is incorrect because the reducing character decreases across a period due to the increase in non-metallic character. Option C is incorrect because the basic character of oxides increases down a group as the elements become more metallic. Option D is incorrect because only Option B accurately reflects the periodic trends.
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About Periodic Properties and Trends
Periodic properties arise from electron configuration and effective nuclear charge, producing trends in atomic and ionic radius, ionization energy, electron affinity, electronegativity, metallic character and reactivity. Comparisons run across periods and down groups, with attention to common exceptions. The topic also relates these trends to the behavior of s-block and p-block elements.
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