Property talk:P2260

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ionization energy
minimum amount of energy required to remove an electron from an atom, ion or molecule in the gaseous state

Description	minimum amount of energy required to remove an electron from an atom or molecule in the gaseous state
Represents	ionization energy (Q483769)
Data type	Quantity
Template parameter	|ionization energy N= in en:Template:Infobox element
Domain	According to this template: chemicals According to statements in the property: type of chemical entity (Q113145171) or chemical element (Q11344) When possible, data should only be stored as statements
Allowed values	According to this template: any integer or floating point number with a measurement unit such as electronvolt (Q83327) According to statements in the property: 0 ≤ 𝓧 ≤ 99,999,999,999 When possible, data should only be stored as statements
Allowed units	electronvolt (Q83327) or kilojoule per mole (Q752197)
Example	2-heptanone (Q517266) → 9.33 electronvolt
Source	http://www.cdc.gov/niosh/npg/default.html
Robot and gadget jobs	Future importation of Pocket Guide to Chemical Hazards into Wikidata. Check to see if there is a valid unit of measurement?
See also	excitation energy (P9998)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value Database reports/Constraint violations/P2260 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 819 Main statement 818 99.9% of uses Qualifier 1 0.1% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Type “type of chemical entity (Q113145171), chemical element (Q11344)”: item must contain property “instance of (P31)” with classes “type of chemical entity (Q113145171), chemical element (Q11344)” or their subclasses (defined using subclass of (P279)). (Help)

List of violations of this constraint: Database reports/Constraint violations/P2260#Type Q113145171, Q11344, hourly updated report, SPARQL

Units: “electronvolt (Q83327), kilojoule per mole (Q752197)”: value unit must be one of listed. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2260#Units, hourly updated report

Range from “0” to “99999999999”: values should be in the range from “0” to “99999999999”. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2260#Range, hourly updated report

Required qualifier “series ordinal (P1545)”: this property should be used with the listed qualifier. (Help)

List of violations of this constraint: Database reports/Constraint violations/P2260#mandatory qualifier, hourly updated report, SPARQL

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

List of violations of this constraint: Database reports/Constraint violations/P2260#Scope, hourly updated report, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2260#Entity types

This property is being used by: ru:Шаблон:Вещество hy:Կաղապար:Տեղեկաքարտ Նյութ be-x-old:Шаблён:Рэчыва tg:Шаблон:Моддаи кимиёӣ ast:Plantía:Ficha de compuestu químicu ary:موضيل:معلومات عنصر كيماوي diq:Şablon:Infobox elementi be-tarask:Шаблён:Рэчыва Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)