> It reminds me of one of the ways of visually laying out elementary particles according to the Standard Model. And now I wonder how much that representation is also actually detrimental to its use as a teaching aid.

The Periodic Table does seem like the inspiration. The crucial difference being that the Periodic Table has that shape for a reason. Take the first column of this page for example: u8, i8, bool. Ok, probably 8 bits big so good so far, but then that SAME ROW also has fn(T...) -> U, const T, mut T. Only two of which are related in any way with eachother, let alone the 8 bits column which is 100% not the same thing.

Contrast to the Periodic Table where the first row has H and He which both only use the base electron shell. H is to the left because it has (when neutral) 1/2 electrons in it's shell and He to the right because it has 2/2. Then going down from He are all the nobel gases which all have full electron shells.

Going down on the right most side of this page has just a bunch of random stuff.

Anyway, the reason people try to draw things like the Periodic Table is because it's super good, but the people who do it think it's good marketing, not based on physics/chemistry, missing the entire point.

Right, I also have some chemistry knowledge, so maybe that's why this felt off (form over function?) to me.

There's a reason labs continue to have the modern periodic table on their wall even though they have Wikipedia in their pockets, and it's not just because they get freebies from lab equipment vendors :).