Plasma Diffuser Sorts Light Atoms to Solar Surface
  The Sun operates like a giant plasma diffuser that sorts lighter isotopes and elements to the solar surface. Measurements indicate that the interior of the Sun consists mostly of the same seven, even-numbered elements as ordinary meteorites: Iron, oxygen, nickel, silicon, sulfur, magnesium, and calcium. These ordinary elements compose clothing on the central neutron star that was produced at the core of the supernova that exploded here 5 billion years ago. Neutron emission generates most solar energy. Neutron-decay near the core produces Hydrogen ions that are accelerated upward by deep-seated magnetic fields. This is the carrier gas that maintains mass separation in the Sun. Like smoke, Hydrogen is a by-product from the solar furnace that powers the Sun. As smoke passes over catalytic converters in the flue of a high-efficiency furnace, most Hydrogen is fused into Helium during its upward journey. H-fusion makes less than 38 percent of solar energy. Each year 50 trillion tons of Hydrogen reach the solar surface and are flung off in the solar wind, with isotopes of other trace elements carefully sorted by mass. Hydrogen is smoke from the solar furnace, rather than its primary fuel. 
O. Manuel