Keeping in view the periodic law and periodic table, suggest which of the following elements should have maximum electronegative character.
Correct answer: C. Fluorine
- A. Oxygen
- B. Nitrogen
- C. Fluorine
- D. Astatine
Explanation
Fluorine is the most electronegative element in the periodic table because it is at the top right corner, excluding the noble gases. Electronegativity increases across a period from left to right and decreases down a group. Oxygen, while also highly electronegative, is less so than fluorine. Nitrogen is less electronegative than both oxygen and fluorine. Astatine, being at the bottom of the halogen group, has significantly lower electronegativity than fluorine.
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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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