Given below are two statements : Statement ( I ): The radii of isoelectronic species increases in the order. Mg 2 +

Question

Given below are two statements : Statement ( $I$ ): The radii of isoelectronic species increases in the order. $Mg^{2 +} < Na^{+} < F^{-} < O^{2 -}$ 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 :

Options:

Answer:

D

Solution:

$r \propto q^{-}$ (for isoelectronic species) $\propto \frac{1}{q ^{+}}$ $∴$ Statement I is correct Magnitude of electron gain enthalpy $Cl > F > Br > I$

TestHub · Accepted Answer

r ∝ q − (for isoelectronic species) ∝ q + 1 ​ ∴ Statement I is correct Magnitude of electron gain enthalpy Cl > F > Br > I

Chemistry - PERIODIC TABLE Question with Solution | TestHub

Options:

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