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 ...

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

One of his chief interests was working out problems involved in the Bohr-Rutherford model of the atom. He just barely received his PhD in 1923 -- nearly failing because he had neglected his ...

Scientists changed the model so that it could explain the new evidence. 1909-1911 Rutherford (and Geiger and Marsden) Some positively charged particles fired at gold foil bounced back when they ...

who in 1897 discovered the electron and in 1904 proposed a model of the atom — was the first person to be credited with splitting the atom. Rutherford, the New Zealand-born scientist ...

In 1913, Niels Bohr revised Rutherford's model by suggesting that the electrons orbited the nucleus in different energy levels or at specific distances from the nucleus. By doing this, he was able ...

Highlights included the discovery of the atomic nucleus in 1911, Henry Moseley's physical explanation of the different properties of chemical elements and the consequent Rutherford-Bohr model of the ...