1. The problem statement, all variables and given/known data State wether atom is in ground or excited state. 2. Relevant equations A.1s22s22p3 B.1s22s22p63s23p64s23d104p55s24d7 C.1s22s22p63s23p64s23d6 3. The attempt at a solution A. Ground because all are filled in order. B.Excited because the 5s sub-shell isnt quite full. C.Ground as all are filled in order. Can someone check that i have this correct and if not please explain to me what ive done wrong. Thanks!!