Part of Physics (Single Science) Unit 1: Atomic and nuclear physics Most of the mass and all of the positive charge of an atom is in the nucleus. Most of an atom is empty space, (a vacuum). In 1897, ...

Ever since the nucleus of the atom was discovered in 1911, scientists have split, fused and smashed nuclei together to unravel its internal structure. Among the numerous researchers worldwide who are ...

Holger Müller is in the Department of Physics, University of California, Berkeley, Berkeley, California 94720, USA. However, the recoil energy is tiny and therefore hard to measure. Laser-based ...

When most of us picture an atom, we think about a small nucleus made of protons and neutrons orbited by one or more electrons. We view these electrons as point-like while rapidly orbiting the nucleus.

With the growing demand for more efficient and sustainable chemical processes, single-atom catalysts (SACs) have become a research hotspot due to their high atomic utilization and unique catalytic ...

Flatpack solution: schematic of a Z-shaped graphene electrode sandwiched between two thin layers of boron nitride (green slabs). The ultracold atoms are represented by the red cloud. (Courtesy: K.