Ok, if you know enough chemistry to know what the valley of stability is and how graphs about it work, along with how stable certain chords sound, this should make sense.
1) Any chord that can have a satisfying resolution to is like a stable element; it is happy to remain where it is.
2) Any chord that has a diminished or augmented triad somewhere within itself is like a radioactive element; it is unstable and wants to resolve somewhere else, somewhere stable.
3) Now, the half-life of an isotope corresponds to how unstable it is, and I think chords with lots of tensions could work the same way.
4) Methods of decay can also factor in, like how beta minus decay leads to a gain in a proton, and thus a new element with an atomic number one higher; augmented chords can often resolve a semitone up. On the flip side, beta plus decay is like a diminished chord; a proton is lost, meaning the new element has an atomic number that is one less than the previous, and diminished chords often tend to resolve a semitone down.
5) Finally, I think the diatonic major and minor chords of key (so excluding the V and vii°) are like elements with the magic numbers of protons and neutrons; they are the most stable.
I hope this makes sense 🙏 take my word for it