Which element in each of the following pairs has a more negative electron gain enthalpy?
$(i)$ $O$ or $F$ $(ii)$ $F$ or $Cl$
$(i)$ $O$ or $F$ $(ii)$ $F$ or $Cl$
(A) $(i)$ $F$ $(ii)$ $Cl$
$O$ has $-141 \ kJ \ mol^{-1}$,$F$ has $-328 \ kJ \ mol^{-1}$,and $Cl$ has $-349 \ kJ \ mol^{-1}$ as their electron gain enthalpy $(\Delta_{eg}H)$.
$O$ has $-141 \ kJ \ mol^{-1}$,$F$ has $-328 \ kJ \ mol^{-1}$,and $Cl$ has $-349 \ kJ \ mol^{-1}$ as their electron gain enthalpy $(\Delta_{eg}H)$.
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In which of the following is the electron gain enthalpy of elements correctly arranged?
The process requiring the absorption of energy is
Medium
View SolutionIn which of the following pairs,electron gain enthalpies of constituent elements are nearly the same or identical?
$A$. $Rb$ and $Cs$
$B$. $Na$ and $K$
$C$. $Ar$ and $Kr$
$D$. $I$ and $At$
Choose the correct answer from the options given below.
$A$. $Rb$ and $Cs$
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Which of the following is correct for the electron affinity of halogens?
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View SolutionIdentify the element having positive electron gain enthalpy.
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