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This is an approximation that is based on the fact that the electron is more than 1000 times lighter than the nucleus of the atom. It allows you to model the motion of electrons as being completely independent of the motion of nuclei because the motion of the nuclei is much much slower than that of electrons. For instance, when an molecule absorbs light such that its electronic configuration changes, that happens essentially immediately. Then the nuclei will move accordingly (either shortening or lengthening bond lengths for instance).
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When did Robert Oppenheimer get married?
Robert Oppenheimer was born on April 22, 1904.
Is dr Michael oppenheimer related to Robert oppenheimer?
Yes. He is Robert Oppenheimer's son.
Who are j robert oppenheimer's grandchildren?
Dorothy Vanderford, Charles Oppenheimer, Ella Oppenheimer
When was Casa Oppenheimer created?
Casa Oppenheimer was created in 1913.
Where did J. Robert Oppenheimer die?
J. Robert Oppenheimer died in the Virgin Islands.
When was Damon Oppenheimer born?
Damon Oppenheimer was born in 1962.
When was Lillian Oppenheimer born?
Lillian Oppenheimer was born in 1898.
When was Bernard Oppenheimer born?
Bernard Oppenheimer was born in 1866.
When was Ernest Oppenheimer born?
Ernest Oppenheimer was born in 1880.
When was Joshua Oppenheimer born?
Joshua Oppenheimer was born in 1974.
When was Andrés Oppenheimer born?
Andrés Oppenheimer was born in 1951.
When was Stephen Oppenheimer born?
Stephen Oppenheimer was born in 1947.
When was Ruben Oppenheimer born?
Ruben Oppenheimer was born in 1975.
When was Hillel Oppenheimer born?
Hillel Oppenheimer was born on April 4, 1899.
When was Franz Oppenheimer born?
Franz Oppenheimer was born on March 30, 1864.
When was Alan Oppenheimer born?
Alan Oppenheimer was born on April 23, 1930.
When was Thomas Oppenheimer born?
Thomas Oppenheimer was born on 1988-12-16.
