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Why fluorine has lesser electron gain en...

Why fluorine has lesser electron gain enthalpy than chlorine?

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In fluorine, there is more interelectronic repulsion between valence electron due to exceptionally small size than chlorine, therefore, it has less electron-affinity.
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Statement-1: Fluorine has a less negative electron gain enthalpy than chlorine. Statement-2: There is relative greater effectivebess of 2p-electrons in the small F atom to repel the additional electron entering the atom than to 3p-electrons in the large CI atom.

Statement-1: Fluorine has less electron affinity than chlorine. Statement-2 : Due to small size, more electron-electron repulsions are observed in F.

Fluorine has lower electron affinity than chlorine because of

Electron gain enthalpy and electronegativity

Electron gain enthalpy and electronegativity

CENGAGE CHEMISTRY-APPENDIX - INORGANIC VOLUME 1-Exercise very short
  1. Generally electron gain enthalpy on going down a group, and on going...

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  2. Why is the second electron gain enthalpy negative (i.e. energy is abs...

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  3. Why fluorine has lesser electron gain enthalpy than chlorine?

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  4. Isoelectronic species have the same number of .

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  5. Lanthanides and actinides belong to block of the periodic table.

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  6. Generally, the atomic size along a period gradually decreases due to i...

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  7. The formula for fluoride of carbon is .

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  8. The solubility of alkali metal carbonateas one goes down the group.

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  9. The electronic configuration of Re^(3+) is (Xe)4f^(14)5d^(4), the numb...

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  10. Lother Meyer atttempts to classify the elements by plotting graph betw...

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  11. Second period ends with .

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  12. The first transition series is called transition series.

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  13. Why do alkali metals have lowest ionisation energy?

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  14. Why are lanthanides and actinides place at the bottom of the periodic ...

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  15. How do the basicity and solubility in water vary from Be(OH)(2) to Ba(...

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  16. Why are cations smaller than neutral atom?

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  17. Why are anions bigger than neutral atom?

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  18. Which is the smallest among Na^(o+),Mg^(2+),Al^(3+), and why?

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  19. Which has the largest ionic radius Ca^(2+),Mg^(2+),Ba^(2+)?

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  20. Define (a) metallic radius and (b) van der Waals radius.

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