Respuesta :
An ion needs to have the same number of electrons as a noble gas in order to have a noble gas configuration.
You can accomplish this in one of two ways: So that the ion has the same number of electrons as the noble gas before it on the Periodic Table, the right number of electrons are removed. Nonmetal family with 8 valence e-; all gases at normal temperature; completely inert. electron arrangement in noble gases. The final noble gas is placed before the element in another way to write the electron configuration, followed by the remaining electrons. The main distinction between an electron configuration and a noble gas configuration is the presence of just electron pairs in the former.
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