Ground or excited states.Please check.

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SUMMARY

The discussion focuses on determining whether specific electron configurations represent ground or excited states of atoms. Configuration A (1s22s22p3) is confirmed to be in the ground state due to all subshells being filled in order. Configuration B (1s22s22p63s23p64s23d104p55s24d7) is identified as excited because the 5s subshell is not fully occupied. Configuration C (1s22s22p63s23p64s23d6) is also in the ground state as all subshells are filled in order.

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Homework Statement



State wether atom is in ground or excited state.

Homework Equations



A.1s22s22p3
B.1s22s22p63s23p64s23d104p55s24d7
C.1s22s22p63s23p64s23d6

The Attempt at a Solution




A. Ground because all are filled in order.
B.Excited because the 5s sub-shell isn't 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 I've done wrong. Thanks!
 
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5s is full. But you are probably on the right track.
 
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