History of the atom Flashcards

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1
Q

Who discovered the electron?

A

J.J. Thomson discovered this sub-atomic particle in 1897.

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2
Q

Who discovered the proton?

A

Ernest Rutherford discovered this sub-atomic particle in 1909.

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3
Q

Who discovered the neutron?

A

James Chadwick discovered this sub-atomic particle in 1932.

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