According to this model, the atom no longer consisted of just electrons floating in a soup but had a tiny central nucleus, which contained most of the atom's mass. Around this nucleus, the ...

When the average non-scientist thinks of an atom, chances are they envision some popularized version of the classic, much-maligned Bohr model of the ... detector used in most synchrotron radiation ...

This 'solar system' model of the atom is the way that most people think about atoms today. It is known as the Rutherford-Bohr model of atomic structure. The neutron was difficult to discover ...

they were originally thought to bethe most minute particle in existence, with their name being derived from the Ancient Greek word for indivisible. A simple model of an atom shows a nucleus ...