In which of the following arrangements, the order is according to the property indicated against it?A. `Li lt Na lt K lt Rb` (metallic radius)B. `B lt C lt N lt O` (ionization enthalpy)C. `I lt Br lt F lt C1`(electron gain enthalpy)D. `A1^(3+) lt Mg^(2+) lt Na^(+) lt F^(-)` (ionic radius)

In which of the following arrangements, the order is according to the

1.	In which of the following arrangements, the order is according to the property indicated against it?A. `Li lt Na lt K lt Rb` (metallic radius)B. `B lt C lt N lt O` (ionization enthalpy)C. `I lt Br lt F lt C1`(electron gain enthalpy)D. `A1^(3+) lt Mg^(2+) lt Na^(+) lt F^(-)` (ionic radius)
Answer» Correct Answer - B Nitrogen has higher ionization enthalphy relative to oxygen because of the extra stability of excatly half-full `p`-subshell.

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In which of the following arrangements, the order is according to the property indicated against it?A. `Li lt Na lt K lt Rb` (metallic radius)B. `B lt C lt N lt O` (ionization enthalpy)C. `I lt Br lt F lt C1`(electron gain enthalpy)D. `A1^(3+) lt Mg^(2+) lt Na^(+) lt F^(-)` (ionic radius)

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