Thomson plum pudding model
E656398
The Thomson plum pudding model was an early atomic theory proposing that negatively charged electrons were embedded within a diffuse, positively charged "pudding" that made up most of the atom.
All labels observed (3)
| Label | Occurrences |
|---|---|
| Thomson plum pudding model canonical | 2 |
| Thomson atomic model | 1 |
| plum pudding model | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7329800 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Thomson plum pudding model Context triple: [Rutherford model of the atom, replaced, Thomson plum pudding model]
-
A.
Rutherford model of the atom
The Rutherford model of the atom is an early nuclear atomic model proposing a tiny, dense, positively charged nucleus surrounded by mostly empty space in which electrons orbit.
-
B.
Bohr model of the atom
The Bohr model of the atom is an early quantum theory in which electrons orbit the nucleus in discrete, quantized energy levels, explaining atomic spectra such as that of hydrogen.
-
C.
hypothesis of the primeval atom
The hypothesis of the primeval atom is Georges Lemaître’s early cosmological model proposing that the universe began from a single, extremely dense “primeval atom” that explosively expanded, anticipating the modern Big Bang theory.
-
D.
The Electron
"The Electron" is a landmark early 20th-century scientific work by Robert A. Millikan that details his experimental determination of the electron’s charge and explores the fundamental nature of this subatomic particle.
-
E.
Bohr
Bohr is a prominent Danish surname most famously associated with physicist Niels Bohr and mathematician Harald Bohr.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Thomson plum pudding model Target entity description: The Thomson plum pudding model was an early atomic theory proposing that negatively charged electrons were embedded within a diffuse, positively charged "pudding" that made up most of the atom.
-
A.
Rutherford model of the atom
The Rutherford model of the atom is an early nuclear atomic model proposing a tiny, dense, positively charged nucleus surrounded by mostly empty space in which electrons orbit.
-
B.
Bohr model of the atom
The Bohr model of the atom is an early quantum theory in which electrons orbit the nucleus in discrete, quantized energy levels, explaining atomic spectra such as that of hydrogen.
-
C.
hypothesis of the primeval atom
The hypothesis of the primeval atom is Georges Lemaître’s early cosmological model proposing that the universe began from a single, extremely dense “primeval atom” that explosively expanded, anticipating the modern Big Bang theory.
-
D.
The Electron
"The Electron" is a landmark early 20th-century scientific work by Robert A. Millikan that details his experimental determination of the electron’s charge and explores the fundamental nature of this subatomic particle.
-
E.
Bohr
Bohr is a prominent Danish surname most famously associated with physicist Niels Bohr and mathematician Harald Bohr.
- F. None of above. chosen
Statements (46)
| Predicate | Object |
|---|---|
| instanceOf |
atomic model
ⓘ
historical scientific theory ⓘ |
| alsoKnownAs |
Thomson atomic model
ⓘ
linked to:
Thomson plum pudding model
plum pudding model ⓘ
linked to:
Thomson plum pudding model
|
| appliesTo | all atoms ⓘ |
| assumes |
atom is a sphere of positive charge
ⓘ
electrons are much lighter than the positive matrix ⓘ electrons are stationary or slowly moving within the positive matrix ⓘ electrons can move within the positive sphere ⓘ mass of atom is largely associated with positive charge distribution ⓘ negative electrons are embedded in a diffuse positive charge ⓘ no central nucleus ⓘ overall atom is electrically neutral ⓘ positive charge is spread out continuously ⓘ positive charge occupies most of atomic volume ⓘ |
| basedOn | discovery of the electron ⓘ |
| cannotExplain |
discrete atomic spectra
ⓘ
existence of a small dense nucleus ⓘ large-angle scattering of alpha particles ⓘ |
| challengedBy |
Rutherford gold foil experiment
ⓘ
linked to:
Geiger–Marsden experiment
|
| comparesElectronsTo | plums in a pudding ⓘ |
| comparesPositiveChargeTo | pudding ⓘ |
| describes | structure of the atom ⓘ |
| educationalLevel |
high school physics
ⓘ
introductory university physics ⓘ |
| electronDiscoveredBy | J. J. Thomson ⓘ |
| electronDiscoveryYear | 1897 ⓘ |
| falsifiedBy | alpha particle scattering experiments ⓘ |
| field |
atomic physics
ⓘ
physical chemistry ⓘ |
| historicalPeriod | early 20th century ⓘ |
| illustrates | transition from indivisible atoms to subatomic structure ⓘ |
| influenced | development of later atomic models ⓘ |
| languageOfOriginalPublication | English ⓘ |
| precedes |
Rutherford nuclear model
ⓘ
linked to:
Rutherford model of the atom
|
| predicts | small deflections of alpha particles only ⓘ |
| proposedBy | J. J. Thomson ⓘ |
| proposedInYear | 1904 ⓘ |
| relatedConcept |
cathode rays
ⓘ
electron ⓘ nuclear atom ⓘ |
| replacedPreviousViewOf | indivisible solid atom of Dalton ⓘ |
| status | superseded ⓘ |
| supersededBy |
Bohr model of the atom
ⓘ
Rutherford model of the atom ⓘ |
| usedAs | teaching example in history of science ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Thomson plum pudding model Description of subject: The Thomson plum pudding model was an early atomic theory proposing that negatively charged electrons were embedded within a diffuse, positively charged "pudding" that made up most of the atom.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Thomson plum pudding model
linked to: Thomson plum pudding model