Hollow atoms are special atoms with multiple missing electrons in their inner shells, while their outer shells are still fully or partially filled with electrons. Studying the production mechanisms, ...

A stable cluster of aluminum atoms, Al13, acts as a single entity in chemical reactions, demonstrating properties similar to those of a halogen, reports a research team led by A Welford Castleman Jr., ...

If you think of a single atom as a grain of sand, then a wavelength of visible light—which is a thousand times larger than the atom's width—is comparable to an ocean wave. The light wave can dwarf an ...