first modern concept of atomic structure; all of the positive charge and most of the mass of the atom are contained in a compact nucleus; a number of electrons (equal to the atomic number) occupy the rest of the volume of the atom and neutralize the positive charge
Rutherford atom的用法和樣例：
例句
He pioneered the orbital theory of the atom through his discovery of Rutherford scattering off the nucleus with his gold foil experiment. 他通過盧瑟福金箔實驗分離出核子，首創了原子軌函數說。
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