Atomic units/Related Articles: Difference between revisions
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Latest revision as of 11:00, 14 July 2024
- See also changes related to Atomic units, or pages that link to Atomic units or to this page or whose text contains "Atomic units".
Parent topics
Subtopics
- Elementary charge [r]: Charge of electron (negative) and proton (positive); before discovery of the quark thought to be the smallest possible electric charge, written , value 1.602 176 53(14) × 10−19 C [e]
- Bohr radius [r]: Radius of the first Bohr orbit in the hydrogen atom. [e] (bohr) a0 length 0.529 177 2108(18) × 10−10 m
- Electron mass [r]: Add brief definition or description me mass 9.109 3826(16) × 10−31 kg
- Reduced period of first Bohr orbit [r]: Add brief definition or description ℏ/Eh time 2.418 884 326 505(16) × 10−17 s
- Reduced Planck constant [r]: Add brief definition or description ℏ action 1.054 571 68(18) × 10−34 Js
- Hartree energy [r]: Add brief definition or description (hartree)
- International System of Units [r]: Metric unit system based on the metre, kilogram, second, ampere, kelvin, mole and candela. [e]
- Atomic mass [r]: The mass of an atom expressed in unified atomic mass units (u) and formerly known as atomic weight. [e]
- Atomic mass constant [r]: One twelfth of the mass of a carbon-12 atom in its nuclear and electronic ground state. It is equal to the unified atomic mass unit. [e]
- Unified atomic mass unit [r]: A unit of atomic and molecular mass, the ratio of atomic mass to one twelfth of the mass of carbon 12C at rest in its nuclear and electronic ground state, approximately 1.660 538 921(73) × 10−27 kg . [e]
- Atomic mass constant [r]: One twelfth of the mass of a carbon-12 atom in its nuclear and electronic ground state. It is equal to the unified atomic mass unit. [e]
- Unified atomic mass unit [r]: A unit of atomic and molecular mass, the ratio of atomic mass to one twelfth of the mass of carbon 12C at rest in its nuclear and electronic ground state, approximately 1.660 538 921(73) × 10−27 kg . [e]