(A) The correct order of electron affinity is $Cl > F > S > O$.Due to the small size of $2^{nd}$ period elements ($F$ and $O$),the incoming electron e

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(A) The correct order of electron affinity is $Cl > F > S > O$.Due to the small size of $2^{nd}$ period elements ($F$ and $O$),the incoming electron experiences greater inter-electronic repulsion compared to the $3^{rd}$ period elements ($Cl$ and $S$).Consequently,the electron affinity of $2^{nd}$ period non-metals is lower than that of their respective $3^{rd}$ period counterparts.

Class 11 Chemistry Classification of Elements and Periodicity in Properties Electron affinity

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Which of the following represents the correct order of electron affinity?

A
$Cl > F > S > O$
B
$F > O > S > Cl$
C
$F > Cl > S > O$
D
$Cl > S > O > F$

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Class 11

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Classification of Elements and Periodicity in Properties

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Electron affinity

The electron affinities of halogens are $F = 322$,$Cl = 349$,$Br = 324$,$I = 295 \ kJ \ mol^{-1}$. The higher value for $Cl$ as compared to that of $F$ is due to

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When the first electron gain enthalpy $(\Delta _{eg}H)$ of oxygen is $-141 \ kJ/mol,$ its second electron gain enthalpy is

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$Na^{-} \xleftarrow{x} Na \xrightarrow{5 \ eV} Na^{+}$
Predict the value of $X$ in $eV$.

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The correct order of electron gain enthalpy of $N$,$O$,$Cl$,$Al$ is

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The electron affinity values for the halogens show the following trend:

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Which of the following represents the correct order of electron affinity?

Similar Questions

The electron affinities of halogens are $F = 322$,$Cl = 349$,$Br = 324$,$I = 295 \ kJ \ mol^{-1}$. The higher value for $Cl$ as compared to that of $F$ is due to

When the first electron gain enthalpy $(\Delta _{eg}H)$ of oxygen is $-141 \ kJ/mol,$ its second electron gain enthalpy is

$Na^{-} \xleftarrow{x} Na \xrightarrow{5 \ eV} Na^{+}$ Predict the value of $X$ in $eV$.

The correct order of electron gain enthalpy of $N$,$O$,$Cl$,$Al$ is

The electron affinity values for the halogens show the following trend:

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$Na^{-} \xleftarrow{x} Na \xrightarrow{5 \ eV} Na^{+}$
Predict the value of $X$ in $eV$.