The atomic number of chlorine is 17. give the electron configuration for a neutral atom of chlorine

The neutral atom chlorine has an atomic number of 17 therefore it also contains a total of 17 electrons. We can write its ground state electronic configuration as 1s2 2s2 2p6 3s2 3p5

Additional info we can get here is that since the last one is 3p5 therefore its valence electron is 5.

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