Helium atom Helium atom A helium atom is an atom of the chemical element helium. Helium is composed of two electrons bound by the electromagnetic force to a nucleus containing two protons along with either one or two neutrons, depending on the isotope, held together by the strong force. Unlike for hydrogen, a closed-form solution to the Schrödinger equation for the helium atom has not been found. However, various approximations, such as the Hartree–Fock method, can be used to estimate the ground state energy and wavefunction of the atom. The quantum mechanical description of the helium atom is of special interest, because
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