rubidium-87
type: Thing
description: isotope of rubidium
additional property: PropertyValue
  property ID: P31
  value: isotope of rubidium
additional property: PropertyValue
  property ID: P233
  value: [Rb]
additional property: PropertyValue
  property ID: P234
  value: InChI=1S/Rb/i1+2
additional property: PropertyValue
  property ID: P235
  value: IGLNJRXAVVLDKE-NJFSPNSNSA-N
additional property: PropertyValue
  property ID: P274
  value: Rb
additional property: PropertyValue
  property ID: P279
  value: rubidium
additional property: PropertyValue
  property ID: P661
  value: 4891396
additional property: PropertyValue
  property ID: P662
  value: 6335802
additional property: PropertyValue
  property ID: P683
  value: 52459
additional property: PropertyValue
  property ID: P816
  value: strontium-87
additional property: PropertyValue
  property ID: P1086
  value: +37
additional property: PropertyValue
  property ID: P1122
  value: +1.5
additional property: PropertyValue
  property ID: P1123
  value: -1
additional property: PropertyValue
  property ID: P1148
  value: +50
additional property: PropertyValue
  property ID: P2017
  value: [87Rb]
additional property: PropertyValue
  property ID: P2067
  value: +86.909180531
additional property: PropertyValue
  property ID: P2067
  value: +86.909181
additional property: PropertyValue
  property ID: P2114
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additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
  property ID: P2374
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additional property: PropertyValue
  property ID: P2671
  value: /g/11cfv2g32
additional property: PropertyValue
  property ID: P2877
  value: 29364738
additional property: PropertyValue
  property ID: P4839
  value: Entity["Isotope", "Rubidium87"]
additional property: PropertyValue
  property ID: P6781
  value: Definition:Rubidium/87
additional property: PropertyValue
  property ID: P11089
  value: 1101286
confidence:
  popularity graph score:
    score: 0.001
    score pct: 0
    tier: established
    components:
      sitelinks: 0
      sitelinks norm: 0.0
      unique citations: 8
      unique citations norm: 0.003
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 0
  unique citations: 8
  monthly pageviews: 0
  yearly pageviews: 16
  pageview trend:
    m: 2026-06
    v: 13
  pageview trend:
    m: 2026-05
    v: 3
  tier: established
claims:
  P31:
    value: Q1321050
    source count: 0
    confidence: 0.0
    value label: isotope of rubidium
  P233:
    value: [Rb]
    source count: 1
    confidence: 0.2
  P234:
    value: InChI=1S/Rb/i1+2
    source count: 1
    confidence: 0.2
  P235:
    value: IGLNJRXAVVLDKE-NJFSPNSNSA-N
    source count: 2
    confidence: 0.4
  P274:
    value: Rb
    source count: 1
    confidence: 0.2
  P279:
    value: Q895
    source count: 0
    confidence: 0.0
    value label: rubidium
  P661:
    value: 4891396
    source count: 1
    confidence: 0.2
  P662:
    value: 6335802
    source count: 2
    confidence: 0.4
  P683:
    value: 52459
    source count: 2
    confidence: 0.4
  P816:
    value: Q4300037
    source count: 1
    confidence: 0.2
    value label: strontium-87
  P1086:
    value:
      unit: 1
      amount: +37
    source count: 0
    confidence: 0.0
  P1122:
    value:
      unit: 1
      amount: +1.5
    source count: 1
    confidence: 0.2
  P1123:
    value:
      unit: 1
      amount: -1
    source count: 1
    confidence: 0.2
  P1148:
    value:
      unit: 1
      amount: +50
    source count: 0
    confidence: 0.0
  P2017:
    value: [87Rb]
    source count: 1
    confidence: 0.2
  P2067:
    value:
      unit: http://www.wikidata.org/entity/Q483261
      amount: +86.909180531
    source count: 1
    confidence: 0.2
  P2067:
    value:
      unit: http://www.wikidata.org/entity/Q483261
      amount: +86.909181
    source count: 1
    confidence: 0.2
  P2114:
    value:
      unit: http://www.wikidata.org/entity/Q1092296
      amount: +48100000000.0
    source count: 1
    confidence: 0.2
  P2154:
    value:
      unit: http://www.wikidata.org/entity/Q28719934
      amount: +757855.521
    source count: 1
    confidence: 0.2
  P2160:
    value:
      unit: http://www.wikidata.org/entity/Q28719934
      amount: -84597.791
    source count: 1
    confidence: 0.2

value:
  unit: 1
  amount: +0.2783
source count: 1
confidence: 0.2

value: /g/11cfv2g32
source count: 0
confidence: 0.0

value: 29364738
source count: 1
confidence: 0.2

value: Entity["Isotope", "Rubidium87"]
source count: 0
confidence: 0.0

value: Definition:Rubidium/87
source count: 0
confidence: 0.0

value: 1101286
source count: 1
confidence: 0.2

source: NuDat
stated in qid: Q21234191
retrieved: 2015-11-09

source: NuDat
stated in qid: Q21234191
retrieved: 2016-06-23

source: The AME2016 atomic mass evaluation (I). Evaluation of input data; and adjustment procedures
stated in qid: Q45846010
retrieved: 2017-03-01

source: PubChem
stated in qid: Q278487
retrieved: 2016-10-06

source: ChemSpider
stated in qid: Q2311683
retrieved: 2016-10-06

source: ChEBI
stated in qid: Q902623
retrieved: 2016-10-06

source: ChEBI release 2020-09-01
stated in qid: Q98915402

source: UniChem
stated in qid: Q24170711

wikidata id: Q2019749
domain: isotope_of_rubidium
level: standard
html url: https://4ort.xyz/entity/rubidium-87
markdown url: https://4ort.xyz/entity/rubidium-87.md
facts url summary: https://4ort.xyz/entity/rubidium-87/facts.json
facts url standard: https://4ort.xyz/entity/rubidium-87/facts.json
facts url full: https://4ort.xyz/entity/rubidium-87/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-21T14:50:56.851087Z
entity updated at: 2026-05-03T23:45:09.469384+00:00Z
entity created at: 2026-05-03T15:07:10.673424+00:00Z