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Classification of Elements and Periodicity in Properties — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryClassification of Elements and Periodicity in Properties1 Mark
MCQ
The element with positive electron gain enthalpy is :
  • A
    Hydrogen.
  • B
    Sodium.
  • C
    Oxygen.
  • ✓
    Neon.
✓

Answer

Correct option: D.
Neon.
It has positive electron enthalpy due to stable electron gain enthalpy, there is repulsion between electron to be added and valence electrons.

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