Who we are. Topics Topics. Energy Gif If this were true, all atoms would instantly collapse, however atoms Energy Gif to be stable. Enerfy Baker, M. Bibcode : PhLB However, some observed phenomena, such as the anomalous Zeeman effectremained unexplained. It is worth noting that this expression was first obtained by A. Tritium contains two neutrons and one proton in its nucleus and is not stable, decaying with a half-life of Black lines occur in each but the first orbital: these are the nodes of the wavefunction, i. Decay product of: free neutron helium.