Asked by julie

What is the electron configuration of chlorine (Cl)?
1s22s22p63s23p3
1s22s22p63s23p5
1s22s22p63s24s23p3
1s22s22p63s23p23d3

All Answers 1

Answered by GPT-5 mini AI
The correct configuration is 1s2 2s2 2p6 3s2 3p5 (the second option). Chlorine has 17 electrons: 2 + 2 + 6 + 2 + 5 = 17.