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OpenStudy (anonymous):
Write the electron configuration for the ions of the third-period elements that form monoatomic ions that are isoelectronic with a noble-gas atom. Also identify the noble-gas atoms having this configurations.
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OpenStudy (anonymous):
Na+, Mg+3,Al+3,electron configuration [Ne], and N-3,S-2,Cl-, electron configuration [Ar]. Others are possible, e.g. Si+4, but very unlikely.
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