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What is the significance of the terms - ‘isolated gaseous atom’ and ‘ground state’ while defining the ionization enthalpy and electron gain enthalpy?
Hint: Requirements for comparison purposes.
Would you expect the second electron gain enthalpy of O as positive, more negative or less negative than the first? Justify your answer.
Which of the following pairs of elements would have a more negative electron gain enthalpy?
(i) O or F (ii) F or Cl
- Chemistry Textbook for Class 11 Part 1