Why does fluorine have less electron affinity as compared to bromine?
Correct answer: B. Thick, small electronic cloud
- A. Electronegativity
- B. Thick, small electronic cloud
- C. Seven electrons in outermost shell
- D. Higher ionization energy
Explanation
Fluorine has less electron affinity compared to bromine primarily due to its small atomic size and the associated compact 2p subshell, which leads to greater electron-electron repulsion when an extra electron is added. Additionally, the high electronegativity of fluorine reflects its tendency to hold onto its electrons tightly, which can also affect its affinity for extra electrons. In contrast, bromine's larger size reduces the repulsion experienced when an additional electron is added, resulting in a more favorable electron affinity.
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About s-Block and p-Block Elements
The s and p blocks are studied through their valence-shell configurations, periodic trends and characteristic chemical properties. Work covers the reactions of Group I and Group II elements, the behaviour of Group IV elements, and how atomic size, ionization energy, electronegativity and metallic character change across periods and down groups.
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