In 1913, Niels Bohr revised Rutherford's model by suggesting that the ... However, there was still a difference between the atomic number of the atom and the atomic mass. Bohr and other scientists ...

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 ...

Conventional atomic clocks used on ships are robust enough to handle the rolling waves, but their accuracy pales in comparison to their lab-based counterparts. This is where Vector Atomic ...

He discovered the atomic nucleus and developed a model of the atom that was similar to the solar system. Like planets, electrons orbited a central, sun-like nucleus. Acceptance of this model grew ...

He suggested that an atom was a tiny solid ball. He published his ideas in 1803. This atomic model has changed over time. Scientists used the model to make predictions. Sometimes the results of ...