Atom center of mass, although strictly speaking these particles are believed to be point-like and cannot be said to be rotating. Spin is measured in units of the reduced Planck constant (ħ), with electrons, protons and neutrons all having spin ½ ħ, or "spin-½". In an atom, electrons in motion around the nucleus possess orbital angular momentum in addition to their spin, while the nucleus itself possesses angular momentum due to its nuclear spin. The magnetic field produced by an atom—its magnetic moment—is determined by these various forms of angular momentum, just as a rotating charged object classically produces a magnetic
Captain Atom which returns Captain Atom to his usual self (if somewhat confused). In 2005/2006, Captain Atom appears in a nine-part limited series entitled "Captain Atom: Armageddon" under DC's Wildstorm imprint. Captain Atom's sacrifice in "Superman/Batman" sends him to the WildStorm universe for the duration of the series. In this title, he wears a yellow/red outfit that was first seen in the 1996 "Kingdom Come" limited series. At the moment of his apparent death, Captain Atom experiences a time-shift coinciding with his 2005 appearance in "Superman/Batman", resulting in his arrival in the Wildstorm Universe. He quickly gets into a fight with an