What are supernovas made of?

The process of nuclear fusion, which is the fusion of two hydrogen atoms into one helium atom, is initiated in all stars from their initial hydrogen state by strong gravity and continues for the duration of the star's life.

Towards the end of its life, our star, the sun, will rapidly expand into a red giant before collapsing into a white dwarf. It will never go super nova.

Supernovae are almost certainly to occur in stars with masses at least eight times that of the sun.

Stars that are roughly the size of our sun will keep combining elements until they produce element 26, or iron, at which point all nuclear reactions come to an end.

The heavy elements are at the center of the star, and lighter metal extends outward to the edge. Big stars that explode due to their excessive gravity continue to fuse nuclear matter throughout the whole range of natural elements on the periodic table.

All of the elements that the star has created are blasted out into space when it finally explodes as a supernova, which is why gold and silver are made of elements that were created millions or even billions of years ago.

Nuclear fusion reactions during a supernova explosion lead to the synthesis of heavier elements. Supernovae are primarily composed of hydrogen, helium, and trace amounts of heavier elements. They also contain high-energy particles like electrons, neutrinos, and photons.