Chemistry (Year 12)
Atomic Structure
Which of the following is the correct electron configuration for a sulfur atom?
1s2 2s2 2p6 3s2 3p4
1s2 2s2 2p6 3s2 3p6
1s2 2s2 2p6 3s2 3p3
1s2 2s2 2p6 3s2 3p5