Chemistry (Year 12)
Electronic Structure
What is the electronic configuration of the chlorine atom?
1s2 2s2 2p6 3s2 3p5
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3d10 4s2
1s2 2s2 2p6 3s2 3p4
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