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Atomic mass

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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Behaviour under coord transformation
scalar
Common symbols
ma, m
Intensive?
yes
Other units
dalton (Da)
SI unit
kilogram (kg)

Topics to explore

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Overview

Relative isotopic mass

Similar terms for different quantities

Mass defect

Measurement of atomic masses

Relationship between atomic and molecular masses

History

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Map overview Semantic statistics

Atomic mass

Nodes63
Edges62
Triples45
Avg. degree1.97
Density0.031746
Components1

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Atomic mass

Top relations

related to history · 14
Atomic mass → Atomic, Avogadro's, Berzelius, He, In, John Dalton, Jöns Jakob Berzelius, Karlsruhe Congress, Prout's, Relative, Stanislao Cannizzaro, Still, The, Thomas Thomson
related to Relationship between atomic and molecular masses · 7
Atomic mass → Conversely, In, Molar, Molecular, One, Similar, Thus
related to Mass defect · 6
Atomic mass → At, Big Bang, Isotopes, On, The, This
related to External links · 4
Atomic mass → Atomic Mass Evaluation Archived, National Nuclear Data Center, NIST, Wayback Machine
related to Similar terms for different quantities · 4
Atomic mass → For, However, Relative, The
related to Relative isotopic mass · 3
Atomic mass → Relative, This, While
is a · 2
Atomic mass → absolute mass, absolute mass while all other terms are dimensionless
Behaviour under coord transformation · 1
Atomic mass → scalar
Common symbols · 1
Atomic mass → ma, m
Intensive? · 1
Atomic mass → yes

Important terminology Word statistics

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Important terminology

mass atomic relative isotopic masses carbon-12 isotope weight atom number atoms standard dalton neutrons da nuclide protons elements one element

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Atomic massBehaviour under coord transformationscalar1.00infobox
Atomic massCommon symbolsma, m1.00infobox
Atomic massIntensive?yes1.00infobox
Atomic massOther unitsdalton (Da)1.00infobox
Atomic massSI unitkilogram (kg)1.00infobox
Atomic massis aabsolute mass0.90text
Atomic massis aabsolute mass while all other terms are dimensionless0.90text
Atomic massrelated to External linksNIST0.60section
Atomic massrelated to External linksAtomic Mass Evaluation Archived0.60section
Atomic massrelated to External linksWayback Machine0.60section
Atomic massrelated to External linksNational Nuclear Data Center0.60section
Atomic massrelated to historyThe0.60section

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