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Periodic Table, Periodic Properties and Variations of Properties — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryPeriodic Table, Periodic Properties and Variations of Properties1 Mark
MCQ
Noble gases have zero electron affinity values. Why?
  • A
    Nobel gases have same numbers of electrons at their outermost shell
  • ✓
    Because they have stable electronic configuration
  • C
    All of them have equal numbers of electrons on protons
  • D
    None of the above
✓

Answer

Correct option: B.
Because they have stable electronic configuration
(b) Because they have stable electronic configuration
Explanation : Noble gases have zero electron affinity values because they have stable electronic configuration and have no tendency to take an additional electron. Hence, no energy is released and their electron affinity is zero.

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