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Part 1010-1.1

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Part 10: Atomic and Nuclear·125 entries

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Section 10-13 entries

10-1.1atomic number, proton number 10-1.2neutron number 10-1.3nucleon number, mass number

10-1.1

atomic number, proton number

URNurn:iso:std:iso:80000:-10:ed-2:en:item:10-1.1

Download RDF.jsonld .ttl

https://metanorma.github.io/isq-smart/quantities/part-10/t10-1.1
urn:iso:std:iso:80000:-10:ed-2:en:item:10-1.1

ISQ Identifiers

ISO

urn:iso:std:iso:80000:-10:ed-2:en:item:10-1.1

IEC

urn:iec:std:iec:80000-10:2019:::item:10-1.1

Designations

ENatomic number

FRnuméro atomique

ENproton number

FRnombre de protons

Symbol

Z

Notation systems

Rendered

Z

AsciiMath

Z

LaTeX

Z

Definition

number of protons in an atomic nucleus

nombre de protons d'un noyau atomique

Units

1

one

View related quantities →

Notes

A nuclide is a species of atom with specified numbers of protons and neutrons.

Nuclides with the same value of $Z$ but different values of $N$ are called isotopes of an element.

The ordinal number of an element in the periodic table is equal to the atomic number.

The atomic number equals the quotient of the charge (IEC 80000-6: Electromagnetism) of the nucleus and the elementary charge (ISO 80000-1).

Un nucléide est une espèce d'atome ayant des nombres spécifiés de protons et de neutrons.

Les nucléides ayant la même valeur de $Z$ mais différentes valeurs de $N$ sont appelés isotopes d'un élément.

Le nombre ordinal d'un élément dans la classification périodique est égal au numéro atomique.

Le numéro atomique est égal au quotient de la charge (IEC 80000-6: Electromagnetism) du noyau par la charge élémentaire (ISO 80000-1).

Referenced by

mass defect

Concept HierarchyPendrill (2024)

1dimensionless quantitiesLevel 0 · Kind

Broader concepts

◇ dimensionless quantities

Characterizes

● atom● nucleus

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:t10-1.1

Properties

isq:QuantityShape

Property	Value
rdf:type	isq:Quantity smart:TermEntry
dcterms:identifier	10-1.1
skosxl:prefLabel	"atomic number"@en
skosxl:altLabel	"proton number"@en"Z"@en
skos:definition	number of protons in an atomic nucleus
skos:note	A nuclide is a species of atom with specified numbers of protons and neutrons. Nuclides with the same value of stem:[Z]…
isq:hasUnit	1 (one)
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