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Grade 12th PassInorganic Chemistry

Which of the following will have higher ionization enthalpy : Cl- or F- ?Also please explain why.

Profile image of Manas Mishra
8 Years agoGrade 12th Pass
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3 Answers

Profile image of mritunjay mishra
8 Years ago
chlorine will have more higher ionisation enthalpy than flourine because after losing one electron chlorine gets nobel gas slability.
 
Profile image of Arun
8 Years ago

correct answer should be-

F > Cl > Cl- > F- because

  1. Fluorine is most electronegative element (EN 4)
  2. Chlorine has EN less then fluorine (EN 3.5)
  3. since there is a vacant d-orbital in chlorine, it could hold the extra electrons there.
  4. Fluorine does not have an extra vacant orbital, so it may loose the extra electron easily.
Profile image of abhishek mishra
7 Years ago
Ionisation energy of Cl- is more than that of F- because addition of an electron to Cl gives more energy than in F so removal from Cl- requires more energy

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