The correct order of increasing ionization energy is (b) Cl < Sb < P < As < S
Correct answer: B. Cl < Sb < P < As < S
- A. Sb < Cl < P < S < As
- B. Cl < Sb < P < As < S
- C. As < P < S < Sb < Cl
- D. P < Sb < Cl < S < As
Explanation
Ionization energy generally increases as you move across a period from left to right and decreases as you move down a group. The given order follows this trend.
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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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