So i understand the theory behind shells, subshells and orbitals, and how there are s,p,d,f orbitals with the energy the electrons need to access them increasing in that order.
At the moment i know: In the 1st group, hydrogen is 1s¹ and helium is 1s².
The 2nd group all have 1s² plus up to one 2s orbital and three 2p orbitals. (This means the 2nd group has 8 electron spaces because one orbital can only allow 2 electrons.)
I know the 3rd group has the same orbitals as the 2nd group plus a d orbital and that it can allow 10 electrons. That's about it though.
That is probably really hard to understand in the way I phrased it, but I tried.
I did find a method to calculate the electron configuration relatively easily (https://drive.google.com/file/d/14BlJf7WLCzHpltrmHPm_MIDFcgfDY74F/view?usp=sharing
) without needing any of this, but I really don't want to hide behind a methord and not understand what's happening