Help on 2.43

[Amanda Cardenas 1J]

I need help with parts a, b and d for 2.43. Any help is needed. Thanks.
2.43: What is the ground-state electron configuration expected for each of the following elements:
(a) Silver
(b) Beryllium
(d) Gallium

[Nahelly Alfaro-2C]

The ground-state configuration of the elements is the last noble gas of the row above it with the electron configuration. So the elements configuration for a,b, and d would be
silver- [Kr]4d^10 5s
beryllium-[He]2s^2
gallium-[Ar]3d^10 4s^2 4p

[alexagreco1A]

Part e for 2.43 asks the electron configuration for Tungsten. How do we do the electron configuration for the f subshell, or do we not need to know this for the midterm?

[Tina Wen 1G]

answer