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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 elements will have the lowest electron affinity
  • A
    Nitrogen
  • B
    Flourine
  • C
    Chlorine
  • ✓
    Phosphorus
✓

Answer

Correct option: D.
Phosphorus
d
(d) Phosphorus have the lowest electron affinity due to half filled $p$ orbital, but in nitrogen electron affinity is greater than phosphorus because of large nuclear attraction in comparison with phosphorus.

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