How are all elements created?

Answer 1

After the big bang (if you believe in the big bang) the universe consisted of many subatomic particles, or parts of an atom. Because of the big bang, they were vey hot. However, once cooled, the particles started to form into hydrogen atoms. (There were a few of helium and lithium mixed in there, too.)

Then, gravity started to form the hydrogen into stars. Stars, believe it or not, are like element factories. Stars produce hydrogen until they can't produce any more. Once this happens, the hydrogen atoms start to fuse together to create helium, until it can't create ay more helium, and so on. This continues all the way up to iron.

Once the star can't make any more iron, it burns out and explodes into a supernova. This releases all of the elements made by the star.

Finally, the explosion can cause some of the newly made elements to fuse into heavier elelments, such as silver and gold.

Answer 2

Some (Hydrogen, Helium and a little Lithium) were created in the 'Big Bang' as energy condensed into matter. The rest of the elements are formed out of Hydrogen and Helium in the cores of stars.

Answer 3

The lightest elements (i.e., hydrogen, helium, lithium) were created during the Big Bang. Heavier elements (i.e., oxygen, carbon, silicon) were created by fusion reaction in stars. The most massive stars could create elements as heavy as iron.

The heaviest elements (i.e., uranium) are only created naturally during a supernova.

Answer 4

Our world is made of elements and combinations of elements called compounds. An element is a pure substance made of atoms that are all of the same type. At present, 116 elements are known, and only about 90 of these occur

Answer 5

Most elements - almost everything except hydrogen and helium - were formed in stars, and thrown into space in supernova explosions, where they became part of the next generation of star systems.

Answer 6

Supernovas. Originally there was just Hydrogen. It fused into Helium. Other elements followed and made every thing we know. But not until the first stars started exploding.