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4, Chapter

atomic structure

What is an atom? Smallest particle of an element that retains the chemical properties of that element
Who discovered the electron? J. J. Thomson - 1897
Who discovered the nucleus? Ernest Rutherford -1911
Who discovered the neutron? James Chadwick - 1932
Where is the mass of the atom? Nucleus
The majority of the atom is what? Empty space
What is the difference of Democritus and Aristotle? Democritus: basic particle (atom) Aristotle: Can always be broken down infinitely
Rutherford's atomic model: detected the tiny positive charge nucleus
Created by: mconway13