In 1909 he began experiments that were to change the face of physics. He discovered the atomic nucleus and developed a model of the atom that was similar to the solar system. Like planets ...

University of Queensland scientists have cracked a long-standing puzzle in nuclear physics, showing that nuclear polarization ...

Nuclear fission – the physical process by which very large atoms like uranium split into pairs of smaller atoms – is what ...

In 1919 Rutherford had discovered the proton ... the proton did not seem to be the only particle in the nucleus. As they studied atomic disintegration, they kept seeing that the atomic number ...

Studies that explore how the denser sections of atoms, known as atomic nuclei, interact with neutrons (i.e., particles with ...

The New Zealander had discovered the atomic nucleus in 1911 and further investigations by Bohr led to his quantum model of the atom where electrons travel around the nucleus in certain orbits. When ...

The discovery of a charged substructure to atoms ... on Bohr started with a picture in which electrons circle the atomic nucleus, rather as planets orbit a star. He postulated that there are ...

The atomic nucleus is made up of protons and neutrons ... It's been almost a century since the discovery of the main components of atomic nuclei: protons and neutrons. Initially, the new particles ...

Answer: when it’s anywhere outside the atomic nucleus. That at least is the case ... and independently David Politzer, discovered the key property of asymptotic freedom that underlies quantum ...

Electrons move in fixed orbits, called electron shells, around the nucleus. New evidence The discovery of electrons. Changes to the atomic model Atoms can be broken down into smaller parts.

The relative charge of a nucleus is the same as its proton (atomic) number. Key fact: isotopes are forms of an element that have the same number of protons but different numbers of neutrons.