In simple terms, that assertion is correct, but for those with an expertise in the field, the longer answer to who did it ...

Photo: Niels Bohr's research notes for his new atomic theory Rutherford's find came from a very strange experience. Everyone at that time imagined the atom as a "plum pudding." That is ...

There he met J.J. Thomson (who would soon discover ... He discovered the atomic nucleus and developed a model of the atom that was similar to the solar system. Like planets, electrons orbited ...