Mendeleev Table and Black Hole Classifier as an Indication of the Universality of the UWCM

Abstract Any law or principle describing one area of science or reality must not contradict or create problems in another area. If such a contradiction arises, it is evidence that the law is either incorrect or incorrectly interpreted (being a projection of a more general principle onto a limited scale). This work is part of the research program of the Unified Wave Cosmological Model (UWCM), developing the ontology of the Plast — a quantized network of spacetime. In previous works of the program, the concepts of nodes and connections were introduced, and it was shown that black holes are Plast nodes classified by their connection configuration. This work demonstrates that the Mendeleev table follows the same logic: the valence of elements is not an explanation of chemical properties, but a projection of the connection configuration of a node in the Plast Framework. Noble gases, traditionally considered "absolutely inert," turn out to be nodes with a fully compensated connection configuration. N. Bartlett's experiments (1962), showing that xenon enters into reactions, confirm this principle: inertness is not absolute, but a state that can be disrupted with sufficient energy. It is shown that the four-class black hole classifier and the periodic system of elements are two projections of the same hierarchy of Plast nodes. At each level of hierarchy, the same principle — connection configuration — determines the properties of objects. The Plast Framework, containing embedded antimatter, performs the function of a cosmological catalyst, analogous to chemical catalysis, and may serve as an explanation for gravitational anomalies traditionally attributed to "dark matter." The work offers a unified language for chemistry and astrophysics and shows that standard sciences do not merely "work well" — they describe particular projections of one reality. The UWCM does not reject existing theories but embeds them in a broader ontology. Keywords: cosmology, black holes, Mendeleev table, quantum spacetime, dark matter, antimatter, unified field theory, hierarchy of scales, connection configuration, periodic law, chemical valence, astrophysics.