Q. The ground state electron configuration for arsenic is
A. [Ar] 4s2 4p13
B. [Kr] 4s2 4p1
C. 1s2 2s2 2p6 3s2 3p6 3d12 4s2 4p1
D. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3
Answer: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3
A. [Ar] 4s2 4p13
B. [Kr] 4s2 4p1
C. 1s2 2s2 2p6 3s2 3p6 3d12 4s2 4p1
D. 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3
Answer: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p3