It also tells us that chlorine has 18 neutrons (35 - 17) and, as the number of electrons and protons are equal in a neutral atom ... of a nucleus is the same as its proton (atomic) number.

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 ...

An international research collaboration led by the University of Surrey's Nuclear Physics Group has overturned the ...

Photo: Niels Bohr's research notes for his new atomic theory ... Rutherford deduced that the atom must have nearly all its mass, and positive charge, in a central nucleus about 10,000 times ...

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

The IAEA's NUCLEUS information resource portal provides access to over 100 scientific, technical and regulatory resources, including databases, applications, publications and training material. As it ...

In 1803, John Dalton's atomic theory brought ... presented a planetary model of the atom in 1911. In it, he laid out how atoms have a central, positively charged nucleus with electrons orbiting ...

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 ...

University of Queensland researchers have made a breakthrough in muonic atom research ... splitting within atoms. Nuclear polarization distorts the shape of the nucleus in a similar way to ...

Manchester is the birthplace of nuclear physics and this year marks 100 years ... radiation was emitted that Rutherford hypothesised might be the nucleus of a hydrogen atom. Later painstaking research ...

This transition is less sensitive to environmental disturbances than modern atomic clocks and has been proposed for tests of fundamental physics beyond the Standard Model. This idea isn't new in ...