Hyrdrogen and helium are primordial elements created in the Big Bang. Most other common elements up to the atomic weight of iron were created by nuclear fusion in the cores of stars. Heavier elements were created when massive stars ...See moreHyrdrogen and helium are primordial elements created in the Big Bang. Most other common elements up to the atomic weight of iron were created by nuclear fusion in the cores of stars. Heavier elements were created when massive stars exploded as supernovae. Written by
David Foss
See less