Textbook Hw 1E #13

[Narhayne Nacana 3B]

The question states: "Write the ground-state electron configuration for each of the following atoms: (a) silver; (b) beryllium; (c) antimony; (d) gallium; (e) tungsten; (f) iodine"

For part a I'm confused on how to write the ground-state configuration because silver is after the 4s, 4p, 4d orbital, but the d-block of the periodic table is before the p-block, and I know p orbital has less energy than the d-orbital. How would I write the proper configuration, and how would I write the proper configuration for other elements that have a d-block before the p-block?

[Natalie Keung 1D]

Hi I believe that Professor Lavelle talked about how d subshells have lower energy so they would come before the s subshells in the electron configuration. For Silver, I would write it as [Kr]4d^10 5s^1. Same thing would happen for Antimony. This would be written as [Kr]4d^10 5s^2 5p^3. I hope this helps.