The element having the greatest difference be | vedclass

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Question

(B) The first ionization energy $(IE_1)$ is the energy required to remove the first electron,and the second ionization energy $(IE_2)$ is the energy r

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$K$

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(B) The first ionization energy $(IE_1)$ is the energy required to remove the first electron,and the second ionization energy $(IE_2)$ is the energy required to remove the second electron.For $K$ $(Z=19)$,the electronic configuration is $[Ar] 4s^1$.After losing one electron,$K^+$ acquires the stable noble gas configuration of Argon $([Ar])$.Removing a second electron from this stable configuration requires a very large amount of energy,leading to a huge difference between $IE_1$ and $IE_2$ compared to the other elements listed.

The element having the greatest difference between its first and second ionization energies is

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