Now you are turning into GR. He believes in god but not the one believed in church. Pull the other one RW.
There is one set of elements on Earth.
You can talk about elements elsewhere but for instance. Body is made up of 50 to 75% water. That is H2O. That is two hydrogen elemt to on Oxygen elemet. All otehr subjects all use same elemts.
Yopu have opened up the word to mean topics. There are no elements in thought. What there is are chemical reactions in the brain converted to thought. So even there you actually have real elements involved and it is the same elements.
At some point a new element may arrive from outer space.
So here is a question what are the differences between daimond and gold. Something very distinct.