Photo: Niels Bohr's research notes for his new atomic theory ... had based it on very simple atoms. But there was good evidence he was right: the electrons in his model lined up with the regular ...

Atoms have a central positive nucleus. Most of the mass of an atom is found in the nucleus. 1913 Bohr In-depth work on Rutherford's model showed it had limitations. The electrons should just ...

This simple act of enquiry foretold ... which assumed atoms were uniformly spread out. From this, Rutherford proposed a revolutionary new model of the atom. He suggested that the atom consists ...

Photo: Niels Bohr's research notes for his new atomic theory ... had based it on very simple atoms. But there was good evidence he was right: the electrons in his model lined up with the regular ...