Enviro Flashcards

1
Q

1896

A

Becquerel: Rayons uraniques

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2
Q

1897

A

Rutherford: Composantes α et β des rayons uraniques

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3
Q

1898

A

Curies: -Thorium émet rayons uraniques
-Découverte Radium et Polonium
-Nomment la radioactivité

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4
Q

1899

A

Becquerel: Rayons β sont des é-

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5
Q

1901

A

Cruies: 1g de Ra émet 500j/h sans s’épuiser

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6
Q

1903

A

Rutherford: chaleur interne de la terre vient de radioactivité

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7
Q

1906

A

Rutherford: Particule α est un noyau d’hélium

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8
Q

1909

A

Rutherford, Marsden, Geiger: Experience de la feuille d’or, découverte du noyau

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9
Q

1932

A

Chadwick: découvre le neutron (se detache d’un α si lancé sur du Be)

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10
Q

1933

A

Szilard: Imagine reaction nucléaire en chaîne

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11
Q

1938

A

Meitner, Frisch, Hahn, Strassman: Premiere reaction de fission en bombardant du U avec des neutrons

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12
Q

1939

A

Einstein & Szilard: Idée fission en chaine, lettre roosevelt, creation du Advisory comitee on uranium

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