>[!warning] >This content has not been peer reviewed. # Atom ## I. What it is (established science) Atoms are bound states of a nucleus (hadrons) and electrons. The Bohr radius sets the typical atomic scale; quantum mechanics and the fine-structure constant govern resolution. See atomic physics; RST maps binding and resolution at this scale. ## II. RST/RRT reading | Physics | RST/RRT | |:---|:---| | Nucleus + electrons | **composed_of** [[Hadron]] (nucleus) and electron; relational maintenance at atomic scale. | | Bohr radius | **typical_scale** → Atomic ([[Scale registry]]: atom ~ \(5.29 \times 10^{-11}\) m). | | Resolution | Signal vs noise at atomic scale; \(\mu\) from Resource Triangle. | ## III. Relations - **composed_of:** [[Hadron]] (nucleus), electron. - **typical_scale:** [[Scale registry]] (Atomic / Bohr). - **translates_from:** [[Hadron]]. Translation rule: [[../../expanded theory applied/further applications/Material layer/Material layer (RST)#V. Layer-to-layer translation|Material layer (RST) §V]]. - **translates_to:** [[Molecule]]. ```scale_part L 5.29177210903e-11 ```