🛠️ JEE🧪 Chemistry

Given below are two statements : Statement (I) : The radii of isoelectronic species increases in the order \(M{g}^{2+} S…

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Given below are two statements :
Statement (I) : The radii of isoelectronic species increases in the order

\(M{g}^{2+}

Statement (II) : The magnitude of electron gain enthalpy of halogen decreases in the order, Cl>F>Br>I
In the light of the above statements, choose the most appropriate answer from the options given below:

a

Both Statement I and Statement II are incorrect

b

Statement I is correct but Statement II is incorrect

c

Statement I is incorrect but Statement II is correct

d

Both Statement I and Statement II are correct

✓ Correct answer: d)

Both Statement I and Statement II are correct

Explanation

Isoelectronic species have the same number of electrons but different nuclear charges. The greater the nuclear charge (Z), the stronger the attraction on electrons, making the radius smaller.
The order of electron gain enthalpy (EGE) for halogens is:

\(Cl>F>Br>I\)

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