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Part 1010-4.1

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Part 10: Atomic and Nuclear·125 entries

6 / 125

Section 10-43 entries

10-4.1atomic mass 10-4.2nuclidic mass 10-4.3unified atomic mass constant

10-4.1

atomic mass

URNurn:iso:std:iso:80000:-10:ed-2:en:item:10-4.1

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-10/t10-4.1
urn:iso:std:iso:80000:-10:ed-2:en:item:10-4.1

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-10:ed-2:en:item:10-4.1

IEC

urn:iec:std:iec:80000-10:2019:::item:10-4.1

Designations

ENatomic mass

FRmasse atomique

Symbol

m (X)

m_{X}

Notation systems

Rendered

m (X)

Rendered

m_{X}

AsciiMath

m("X")

AsciiMath

m_"X"

LaTeX

m ( \text{X} )

LaTeX

m_{\text{X}}

Definition

rest mass (rest mass) of an atom $X$ in the ground state

masse au repos (rest mass) d'un atome $X$ dans l'état fondamental

Units

k g

kilogram

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u

unified atomic mass unit

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D a

dalton

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Notes

$\frac{m (X)}{m_{u}}$ is called the relative atomic mass.

$1 unitsml(u)$ is equal to $1 / 12$ times the mass of a free carbon 12 atom, at rest and in its ground state.

1 unitsml(Da) = 1 unitsml(u)

$\frac{m (X)}{m_{u}}$ est appelé masse atomique relative.

$1 unitsml(u)$ est égal à $1 / 12$ de la masse d'un atome libre de carbone 12, au repos et dans son état fondamental.

1 unitsml(Da) = 1 unitsml(u)

Referenced by

mass defect

Concept HierarchyPendrill (2024)

Mmass-type quantitiesLevel 0 · Kind

Broader concepts

◇ mass-type quantities

Narrower concepts

↓ t9-3

Characterizes

● atom

Ontology
isq:Quantity smart:TermEntry

Class Hierarchy

smart:Entity smart:TermEntryisq:Quantity

A physical quantity as defined in ISO/IEC 80000, with associated symbols, definitions, and units of measurement.

Instance IRI

isq:t10-4.1

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	10-4.1
skosxl:prefLabel	"atomic mass"@en
skosxl:altLabel	"m("X")"@en"m_"X""@en
skos:definition	rest mass (<<t10-2>>) of an atom stem:["X"] in the ground state
skos:note	stem:[(m("X"))/m_"u"] is called the relative atomic mass. stem:[1 "unitsml(u)"] is equal to stem:[1//12] times the mass…
isq:hasUnit	kg (kilogram)u (unified atomic mass unit)Da (dalton)
isq:hasDimension	isq:Dimension
smart:hasBindingnessType	bindingness-type:normative
dcterms:isPartOf	isq:part-10

Related Entities

isq:QuantityShape isq:part-10 isq:Unit isq:Dimension isq:hasDimension smart:TermEntry

Definition

Units

Notes

Referenced by

Broader concepts

Narrower concepts

Characterizes

Ontology isq:Quantitysmart:TermEntry

Class Hierarchy

Instance IRI

Properties

Related Entities

Ontology
isq:Quantity smart:TermEntry