Chemistry (11th Grade)
Electron Configuration
What is the electron configuration of a chlorine atom (Cl, atomic number 17)?
1s² 2s² 2p⁶ 3s² 3p⁵
1s² 2s² 2p⁶ 3s² 3p⁶
1s² 2s² 2p⁶ 3s² 4p³
1s² 2s² 2p⁶ 3s² 3p⁴
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