(a) 1s22s1,ground
(b) 1s22s22p3,ground
(c) [Ne] 3s23p34s1,excited 3p34s1
(d) [Ne]3s23p64s33d2,impossible b/c 4s3
(e) [Ne] 3s23p64f4,excited,3p44f4
(f) 1s22s22p43s2,excited b/c 2p43s2
(a) 1s22s1,ground
(b) 1s22s22p3,ground
(c) [Ne] 3s23p34s1,excited 3p34s1
(d) [Ne]3s23p64s33d2,impossible b/c 4s3
(e) [Ne] 3s23p64f4,excited,3p44f4
(f) 1s22s22p43s2,excited b/c 2p43s2