1911 ⟶ Rutherford: Discovery of the Atomic Nucleus (Rutherford Model)

Ernest Rutherford: Discovery of the atomic nucleus (Rutherfo...
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Year
1904
1911
1913

⚛️ Nagaoka Proposes Early Nuclear Model of the Atom

Hantaro Nagaoka proposes an early nuclear model of the atom, where electrons orbit a dense massive nucleus.⟶
Nagaoka Proposes Early Nuclear Model of the Atom (1904)
PhysicsAtomic ModelNuclear ModelHantaro NagaokaAtomic Structure20th CenturyPhysics
JapanJapan

⚛️ J. J. Thomson Proposes Plum Pudding Atomic Model

J. J. Thomson's plum pudding model of the atom 1904⟶
J. J. Thomson Proposes Plum Pudding Atomic Model (1904)
Atomic TheoryModelJ.J. ThomsonSubatomic ParticlesPhysicsEarly 20th CenturyScientific Revolution
United KingdomUnited Kingdom

☢️ Rutherford: Discovery of the Atomic Nucleus (Rutherford Model)

Ernest Rutherford: Discovery of the atomic nucleus (Rutherford model)⟶
Rutherford: Discovery of the Atomic Nucleus (Rutherford Model) (1911)
PhysicsAtomic PhysicsRutherfordNuclear ModelAtom
United KingdomUnited Kingdom

🎯 Rutherford, Geiger, and Marsden Perform Gold Foil Experiment

Ernest Rutherford, Hans Geiger, and Ernest Marsden perform the gold foil experiment, which proves the nuclear model of the atom, with a small, dense, positive nucleus surrounded by a diffuse electron cloud.⟶
Rutherford, Geiger, and Marsden Perform Gold Foil Experiment (1911)
PhysicsAtomic PhysicsRutherfordGold Foil ExperimentNuclear ModelAtom
United KingdomUnited Kingdom

🔢 Atomic Number Defined

Henry Moseley: defined atomic number⟶
Atomic Number Defined (1913)
Atomic NumberMoseleyPeriodic TableAtomic PhysicsChemistryEarly 20th Century Chemistry
United KingdomUnited Kingdom