Question

What is the ground state electron configuration for As?

Answer 1

`1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^10 4p^3`

Explanation:

This video explains how to use the Aufbau principle and a diagonal diagram to write electron configurations. Once you practice a few different examples writing electron configurations will become pretty easy.

This video might also be useful, it describes how to write short-cut electron configurations.

Hope this helps!