What produced the iron and heavier elements like gold and silver in the Earth's core and crust?

Answer 1

evry element in the Periodic Table above hydrogen is produced by nuclear fusion in the cores of a star, upto and including iron, afte iron the energies required to fuse iron are not obtainable at the pressures and temperatures in a stars core even though they are massive, the heavier elements are produced during a supernovae were the blast shockwave forces the atoms so closr together and thus generates such incredible temperatures and pressures that iron is forced to fuse with itself and lighter elements so producing the rest of the elements which are then scattered throughout the local area as cosmic dust which can go on to form future planets like our own earth.

Answer 2

These heavy elements were produced through nuclear reactions in the core of massive stars, which later exploded as supernovae, scattering these elements into space. Eventually, they became incorporated into the material that formed Earth, including the core and crust.