The electron affinity of Be is similar to :- | vedclass

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(A) $He$ is a noble gas with a stable electronic configuration $(1s^{2})$,completing its duplet. $Be$ has an electronic configuration of $1s^{2}, 2s^{

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$He$

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(A) $He$ is a noble gas with a stable electronic configuration $(1s^{2})$,completing its duplet. $Be$ has an electronic configuration of $1s^{2}, 2s^{2}$,which means it has a completely filled $2s$ subshell. Both elements have stable,filled subshells,making it difficult to add an electron to either. Therefore,the electron affinity of $Be$ is similar to $He$ among the given options.

The electron affinity of $Be$ is similar to :-

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