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
Olaf—An Atom Olaf—An Atom Olaf—An Atom is a 1913 American film directed by Anthony O'Sullivan and featuring Harry Carey. Broken by grief after his mother's death, Olaf becomes a wanderer. He is treated cruelly until he is given a meal by a woman at the homestead where she lives with her husband and baby. Olaf is able to return her kindness when he overhears a plot to rob the settlers of their home. He alerts the couple and delays the would-be thieves long enough for the husband to file a claim on his land. Olaf is injured by the claim jumpers but