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3. Classification of elements and periodicity in properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistry3. Classification of elements and periodicity in properties1 Mark
MCQ
Which of the following represents correct order of electron affinity?
  • ✓
    $Cl > F > S > O$
  • B
    $F > O > S > Cl$
  • C
    $F > Cl > S > O$
  • D
    $Cl > S > O > F$
✓

Answer

Correct option: A.
$Cl > F > S > O$
a
$(a)$ Correct order of electron affinity is : $Cl > F > S > O$ Electron affinity of $2^{nd}$ period non-metals is less than that of respective $3^{rd}$ period non-metals

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