Which of the following will have the most negative electron gain enthalpy and which the least negative?
$P, S, Cl, F$
Explain your answer.
$P, S, Cl, F$
Explain your answer.
(A) Electron gain enthalpy generally becomes more negative across a period as we move from left to right.
Within a group,electron gain enthalpy becomes less negative down a group.
However,adding an electron to the $2p$-orbital (as in $F$) leads to greater inter-electronic repulsion than adding an electron to the larger $3p$-orbital (as in $Cl$).
Therefore,$Cl$ has the most negative electron gain enthalpy.
Among the given elements,$P$ has the least negative electron gain enthalpy due to its stable half-filled $3p^3$ electronic configuration.
Within a group,electron gain enthalpy becomes less negative down a group.
However,adding an electron to the $2p$-orbital (as in $F$) leads to greater inter-electronic repulsion than adding an electron to the larger $3p$-orbital (as in $Cl$).
Therefore,$Cl$ has the most negative electron gain enthalpy.
Among the given elements,$P$ has the least negative electron gain enthalpy due to its stable half-filled $3p^3$ electronic configuration.
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Similar Questions
The electron affinity values are negative for:
$A$. $Be \rightarrow Be^{-}$
$B$. $N \rightarrow N^{-}$
$C$. $O^{-} \rightarrow O^{2-}$
$D$. $Na \rightarrow Na^{-}$
$E$. $Al \rightarrow Al^{-}$
Choose the most appropriate answer from the options given below:
$A$. $Be \rightarrow Be^{-}$
$B$. $N \rightarrow N^{-}$
$C$. $O^{-} \rightarrow O^{2-}$
$D$. $Na \rightarrow Na^{-}$
$E$. $Al \rightarrow Al^{-}$
Choose the most appropriate answer from the options given below:
Which of the following has the maximum electron gain enthalpy?
Medium
View SolutionEvaluate the following statements regarding electron affinity $(EA)$:
$A$. Carbon is greater than fluorine
$B$. Sulphur is lesser than fluorine
$C$. Iodine is higher than bromine
$D$. Chlorine is greater than sulphur
Select the correct sequence of truth values ($T$ for true,$F$ for false):
$A$. Carbon is greater than fluorine
$B$. Sulphur is lesser than fluorine
$C$. Iodine is higher than bromine
$D$. Chlorine is greater than sulphur
Select the correct sequence of truth values ($T$ for true,$F$ for false):
Electron affinity is the
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View SolutionWhat is electron gain enthalpy?
Easy
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