The nucleus is very small compared to the atom as a whole: as electrons are even smaller, most of an atom is empty space the diameter of a nucleus can be 100,000 times less than the diameter of an ...

Doubly magic nuclei are particularly stable against nuclear decay; 208 Pb is the heaviest known stable isotope of any element ...

Artistic representation of an artificial atom (shown as an atomic structure) implemented in a superconducting circuit interacting with its mirror image created by a short circuit. This configuration ...