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They were formed in supernovae.
It is believed this was how the universe formed. Hydrogen fuses to form all the other heavier elements on the periodic table up to Element number 92
Supernova are responsible for every element in the Universe heavier than iron.
Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.
Iron. See related question.
a series of stars
They were formed in supernovae.
They were formed in supernovae.
a series of star cycles
in the outer layers of supernova
Other elements were formed in stars by nucleosynthesis.
Heavier elements are formed from hydrogen, the most abundant element in the universe, through a process called nuclear fusion. There are machines or structures in the universe that do this, and we call them stars. It is the process within stars, stellar nucleosynthesis, that allows heavier elements to be created up through iron. Elements heavier than iron are formed in supernova events. Use the links below to learn more.
Chemical elements are formed in the Universe by stellar nucleosynthesis.
It is believed this was how the universe formed. Hydrogen fuses to form all the other heavier elements on the periodic table up to Element number 92
Some of the hydrogen has been converted into heavier elements by stars.
Supernova are responsible for every element in the Universe heavier than iron.
Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.Hydrogen, helium, small amounts of lithium. No heavier elements. Lots of the mysterious dark matter.