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30 September, 23:05

What is the electron configuration of chlorine (CI)

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  1. 1 October, 00:48
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    Neutral atom chlorine (Z=17), f has 17 electrons, therefore, its electronic configuration can be written as 1s² 2s²2p⁶ 3s² 3p⁵

    The chloride ion (Cl ⁻), after accepting 1 electron, has an additional electron for a total of 18 electrons. Electronic configuration of Cl ⁻ is then 1s ² 2s ² 2p ⁶ 3s ² 3p ⁶ achieving the stable electronic configuration of its nearest Noble gas, Argon (Z=18).
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