Be sure to answer all parts. One reason spectroscopists study excited states is to gain information about the energies of orbitals that are unoccupied in an atom's ground state. The following electron configuration represents an atom in an excited state.
Identify theelement, and write its condensed ground-state electronconfiguration.
(a)1s22s22p63s13p1
(b)1s22s22p63s23p44s1
(c)1s22s22p63s23p64s23d44p1
(d)1s22s22p53s1