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

Ernest Rutherford ... Acceptance of this model grew after it was modified with quantum theory by Niels Bohr. For his work with radiation and the atomic nucleus, Rutherford received the 1908 ...

These particles should have passed straight through, according to the plum pudding model. However, many of them changed direction. Ernest Rutherford explained these results in his ‘planetary ...

Sir Ernest Rutherford has been called the 'father of nuclear physics' When Donald Trump claimed US scientists split the atom in his inaugural speech, even he could not have imagined the chain ...