Benjamin Mottelson was a US-born physicist who specialized in theoretical work on the structure of the atomic nucleus. During the 1950s, in close collaboration with his Danish colleague Aage Bohr, ...

Physicists Maria Goeppert Mayer and J. Hans D. Jensen develop a theory of the nucleus as composed of shells of protons and neutrons. It explains why nuclei with certain “magic numbers” of protons and ...

Heavier nuclei are less stable—that’s something we all learned in school. Adding more nucleons (protons and neutrons) makes atoms more likely to break apart. It’s one reason why elements heavier than ...

Image of the emission of 4 neutrons (blue spheres) from the exotic nucleus oxygen-28, which consists of 8 protons (red spheres) and 20 neutrons. According to the traditional model, the nucleons inside ...

The inclusion of the long-neglected tensor force into theoretical models revises our understanding of ‘magic numbers’ in the atomic nucleus The world of nuclear physics is a relatively ordered one.

Drug-paired conditioned reinforcers can maintain persistent instrumental responding, thus providing a model of some aspects of long-term drug addiction. The purpose of the present study was to ...

Individual protons and neutrons in atomic nuclei turn out not to behave according to the predictions made by existing theoretical models. This surprising conclusion, reached by an international team ...

Physicist Wolfgang Pauli called her “The Onion Madonna,” after she discovered that the nucleus of the atom has an onionlike layered structure. Maria Goeppert Mayer, the last woman to win a Nobel Prize ...

The following is the 20th in a series of excerpts from Kelvin Rodolfo’s ongoing book project “Tilting at the Monster of Morong: Forays Against the Bataan Nuclear Power Plant and Global Nuclear Energy.

Since the atomic nucleus was first proposed in 1911, physicists simply assumed it was round. But are the nuclei of atoms really round? Intuitively this shape makes sense and physicists believed it ...