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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
Following are configuration of $4$ atoms

$P = [Ne]\, 3s^23p^3$

$Q = [Ar]\,3d^{10}4s^24p^3$

$R = [He]\,2s^22p^5$

$S = [Ne]\,3s^1$

Incorrect statements is

  • ✓
    $EA : Q > R$ [ $EA =$ electron affinity]
  • B
    $EN : R > P$ [ $EN =$ electronegative]
  • C
    $IP : P > S$ [ $IP =$ Ionisation potential]
  • D
    Size : $S > R$
✓

Answer

Correct option: A.
$EA : Q > R$ [ $EA =$ electron affinity]
a

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