Which ion below has a noble gas electron configuration? A)Li²⁺ B)Be²⁺ C)B²⁺ D)C²⁺ E)N²^-

Name: Which ion below has a noble gas electron configuration? A)Li 2+ B)Be 2+ C)B 2+ D)C 2+ E)N 2 -
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Be has 4 electrons, so its configuration is 1s2 2s2. This configuration is the same as the noble gas configuration of helium (1s2). None of the other ions listed have a noble gas electron configuration.

Which Ion Below Has a Noble Gas Electron Configuration