See the answer below.
Work Step by Step
The data translates into: a) $1s^2\ 2s^1$: Li b) $1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^6\ 4s^1$: K c) $1s^2\ 2s^2\ 2p^6\ 3s^2\ 3p^6\ 3d^1\ 4s^2$: Sc
You can help us out by revising, improving and updating this answer.Update this answer
After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.