Given below are two statements : Statement I : The correct order in terms of atomic/ionic radii is . Statement II : The correct order in terms of the magnitude of electron gain enthalpy is In the light of the above statements, choose the correct answe

Question

Given below are two statements :

Statement I : The correct order in terms of atomic/ionic radii is $Al > Mg > {Mg}^{2 +} > {Al}^{3 +}$ .

Statement II : The correct order in terms of the magnitude of electron gain enthalpy is $C l > B r > S > O$

In the light of the above statements, choose the correct answer from the options given below : [2026]

Smart Achievers · Accepted Answer

(3)

$Correct order of size is Mg > Al > {Mg}^{2 +} > {Al}^{3 +}$

$Atomic size depends mainly upon Z_{effective} and shell number.$

$Generally on moving down the group electron affinity decreases$

$and on moving across the period electron affinity increases.$

$In the periodic table Cl has maximum electron affinity.$

$Halogen has higher electron affinity than Chalcogen.$

$Cl > Br > S > O$

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