In which of the following processes is the le | vedclass

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(B) The energy required to remove an electron from a gaseous anion is known as the electron detachment enthalpy or the negative of the electron affini

Vedclass · Accepted Answer

$P^{-}_{(g)} 	o P_{(g)} + e^-$

Vedclass · Answer

(B) The energy required to remove an electron from a gaseous anion is known as the electron detachment enthalpy or the negative of the electron affinity. For the given processes,we are looking at the reverse of electron gain enthalpy. Among the given elements,$P$ has a half-filled $p$-orbital $(3s^2 3p^3)$,making it very stable. Adding an electron to $P$ is unfavorable,and removing an electron from $P^-$ is relatively easy because the electron is held less tightly compared to the others. Specifically,the electron affinity of $P$ is nearly zero or slightly negative,meaning the energy required to remove an electron from $P^-$ is the lowest among the options provided.

In which of the following processes is the least energy required?

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