Identify the correct order of electron gain e | vedclass

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(C) The electron gain enthalpy (electron affinity) depends on the electronic configuration of the elements.$1$. $Be$ $(1s^2 2s^2)$: It has a fully fil

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$N < Be < C < B$

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(C) The electron gain enthalpy (electron affinity) depends on the electronic configuration of the elements.$1$. $Be$ $(1s^2 2s^2)$: It has a fully filled $2s$ orbital,making it very stable. Therefore,it has a positive electron gain enthalpy (very low affinity).$2$. $N$ $(1s^2 2s^2 2p^3)$: It has a half-filled $2p$ subshell,which is extra stable. Thus,it also has a very low electron affinity.$3$. Comparing $B$ $(1s^2 2s^2 2p^1)$ and $C$ $(1s^2 2s^2 2p^2)$: $C$ has a higher effective nuclear charge than $B$,so it attracts electrons more strongly.$4$. The order of electron affinity is $N < Be < B < C$. However,considering the stability of $Be$ and $N$,the experimental order is $N < Be < B < C$. Given the options provided,$N < Be < B < C$ is the most accurate representation of the trend.

Identify the correct order of electron gain enthalpy (electron affinity) for the elements $Be, B, C, N$.

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