The Atom

Dalton's model of the atom (1814)
Mendeleev work (1869)
Mendeleev periodic table (1885)
The Moore lamp
Crookes' tube (1870)
J.J. Thomson: The work
J.J. Thomson: The electron (1903)
Mulliken: Charge of the electron (1909)
Moseley: Atomic number(1913)
Mosley periodic table
Rutherford: nuclear atom (1911)
The Rutherford experiment
Chadwick: the neutron (1932)
The nuclear atom
Hydrogen isotopes
List of some isotopes
Mass spectrometer
Isotope in nature
The actual periodic table

Dalton's model of the atom (1814)

Menu | Mendeleev

Mendeleev periodic table (1869)

Menu | periodic table

Mendeleev periodic table (1885)

Menu | The Moore lamp

The Moore lamp: glow discharge lighting system (1896)

Menu | Crooke cathodic ray

Crookes' tube: cathodic ray (around 1870)

Luminescence of residual gas glows when atoms are struck by fast moving electrons

Menu | Thomson conclusion

From the work of Thomson

Menu | Thomson's model of the atom

Thomson model of the atom: The plump pudding (1903)

Menu | Mulliken

Mulliken and the charge of the electron (1909)

Menu | Moseley

Moseley and the atomic number (1913)

Menu | Periodic table

Moseley periodic table

Menu | Rutherford

Rutherford: nuclear atom (1911)

Menu | Rutherford's experiment

The Rutherford experiment

(animation by Molecular Expression)
Menu | Chadwick

J. Chadwick (1932): Discovery of the neutron (isotope explanation).

Menu | The nuclear atom

The nuclear atom

Menu | Hydrogen isotope

Hydrogen isotopes

Menu | List of some isotopes

List of some isotopes

Menu | mass spectroscope

Mass spectrometer

Menu | Isotope in nature

Isotope in nature