ボーア半はん径けいMeanings1nounBohr radiusphysicsPhysics term for the atomic unit of length, approximately 5.29×10⁻¹¹ m.水すい素そ原げん子しの基き底てい状じょう態たいでは、電でん子しはボーア半はん径けい程てい度どの距きょ離りに存そん在ざいする。In the ground state of a hydrogen atom, the electron exists at a distance on the order of the Bohr radius.
