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Atomic mass (ma or m) is the mass of a single atom. The atomic mass mostly comes from the combined mass of the protons and neutrons in the nucleus, with minor contributions from the electrons and nuclear binding energy. The atomic mass of atoms, ions, or atomic nuclei is slightly less than the sum of the masses of their constituent protons, neutrons, and…
Measurement, History & Standards
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mass atomic relative isotopic masses carbon-12 isotope weight atom number atoms standard dalton neutrons da nuclide protons elements one element
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| Atomic mass | Behaviour under coord transformation | scalar | 1.00 | infobox |
| Atomic mass | Common symbols | ma, m | 1.00 | infobox |
| Atomic mass | Intensive? | yes | 1.00 | infobox |
| Atomic mass | Other units | dalton (Da) | 1.00 | infobox |
| Atomic mass | SI unit | kilogram (kg) | 1.00 | infobox |
| Atomic mass | is a | absolute mass | 0.90 | text |
| Atomic mass | is a | absolute mass while all other terms are dimensionless | 0.90 | text |
| Atomic mass | related to External links | NIST | 0.60 | section |
| Atomic mass | related to External links | Atomic Mass Evaluation Archived | 0.60 | section |
| Atomic mass | related to External links | Wayback Machine | 0.60 | section |
| Atomic mass | related to External links | National Nuclear Data Center | 0.60 | section |
| Atomic mass | related to history | The | 0.60 | section |
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