Geiger–Marsden experiment
E682057
The Geiger–Marsden experiment, also known as the gold foil experiment, was a landmark early 20th-century physics experiment that revealed the existence of a small, dense atomic nucleus and led to the development of the Rutherford model of the atom.
Statements (44)
| Predicate | Object |
|---|---|
| instanceOf |
landmark experiment in atomic physics
ⓘ
physics experiment ⓘ scattering experiment ⓘ |
| alsoKnownAs |
Rutherford scattering experiment
NERFINISHED
ⓘ
gold foil experiment ⓘ |
| category |
experiments in Rutherford scattering
ⓘ
historical experiments in physics ⓘ |
| conductedBy |
Ernest Marsden
NERFINISHED
ⓘ
Hans Geiger NERFINISHED ⓘ |
| country | United Kingdom ⓘ |
| demonstrated |
most of the atom is empty space
ⓘ
nucleus carries most of the atom’s mass ⓘ nucleus is small compared to atomic size ⓘ |
| detectionTechnique | visual counting of scintillations ⓘ |
| endDate | 1913 ⓘ |
| field |
atomic physics
ⓘ
nuclear physics ⓘ |
| historicalPeriod | early 20th century ⓘ |
| influenced | Bohr model of the atom NERFINISHED ⓘ |
| inspiredBy | Ernest Rutherford NERFINISHED ⓘ |
| keyResult |
discovery of atomic nucleus
ⓘ
evidence that positive charge is concentrated in a small volume ⓘ refutation of the Thomson plum pudding model ⓘ |
| ledTo |
Rutherford model of the atom
NERFINISHED
ⓘ
planetary model of the atom ⓘ |
| location | University of Manchester NERFINISHED ⓘ |
| method |
measurement of scattering angles
ⓘ
use of scintillation screen to detect alpha particles ⓘ |
| namedAfter |
Ernest Marsden
NERFINISHED
ⓘ
Hans Geiger NERFINISHED ⓘ |
| observed |
backscattering of alpha particles
ⓘ
large-angle scattering of alpha particles ⓘ |
| publication | 1909 paper on alpha particle scattering ⓘ |
| significance |
foundation of nuclear physics
ⓘ
provided experimental basis for modern atomic theory ⓘ |
| startDate | 1908 ⓘ |
| supervisedBy | Ernest Rutherford NERFINISHED ⓘ |
| supervisingScientist | Ernest Rutherford NERFINISHED ⓘ |
| supportedModel | nuclear model of the atom ⓘ |
| testedModel | Thomson plum pudding model NERFINISHED ⓘ |
| usedProjectile | alpha particles ⓘ |
| usedSource | radioactive alpha emitter ⓘ |
| usedTarget |
gold foil
ⓘ
thin metal foil ⓘ |
Referenced by (3)
Full triples — surface form annotated when it differs from this entity's canonical label.