These nuclei had specific numbers of protons or neutrons, or magic numbers, as physicist Eugene Wigner called them. The race ...

Protons sit in the nuclei of all atoms, but they are not fundamental particles: They are made of three quarks held together by the strong nuclear force. The strength of this interaction is actually ...

Scientists have achieved an incredible feat—mapping the forces inside a proton with extreme precision, uncovering the immense ...

The “lead” of a pencil is actually made of a substance called graphite which is made of carbon atoms. The picture shows a close-up of one carbon atom. A hydrogen atom has one proton as the nucleus and ...

Neutron stars are some of the densest objects in the universe. They are the core of a collapsed megastar that went supernova, ...

The nucleus of each atom contains protons and neutrons. While the number of protons defines the element (e.g., hydrogen, carbon, etc.) and the sum of the protons and neutrons gives the atomic mass, ...

In a groundbreaking discovery, scientists have revealed an unprecedented map of the forces acting within a proton. This map ...

In a surprising turn of events, an international team of scientists has found that lead-208 (208Pb), the heaviest known ...

The SNS offers unprecedented research opportunities due to its intensely bright neutrons and world-class instruments. EQ-SANS is one of 19 instruments available at SNS for users such as Ünnep and ...

They have a radius of around 1 × 10 10 metres. This symbol shows that chlorine has 35 particles in the nucleus (protons and neutrons), 17 of which are protons. It also tells us that chlorine has ...