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Elements that are formed in cool stars are heavy but not heavier than iron. (Elements that are heavier than iron are formed in a supernova.)
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∙ 9y ago
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Compare the elements formed in the big bang with elements formed through nuclear fusion in stars?
No elements were formed in the big bang. After quite some time, hydrogen began to form, and it is the main constituent of stars. The main by-product of nuclear fusion in stars is helium.
How is the gold in a wedding ring evidence of ancient stars that ran their life cylcles long before the solar system came into being?
When the Universe was created in the moment of the big bang, only simple molecules like helium and hydrogen were formed. These gasses later formed stars which created other elements up to iron, but no heavier.Heavier elements can not be formed by nuclear fusion in stars, and are not believed to be formed during the Big Bag. It is theorized that these elements can only be formed when massive stars explode at the end of their life cycle (in a supernova explosion).Therefore, the presence of gold itself means that a supernova exploded and formed the metals.
Is iron likely to be formed in the sun?
Not in our Sun, but heavy elements up to and including iron are formed in very massive suns (stars). Elements heavier than iron are formed with suns die in a supernova.
Is it true that Hydrogen and Helium were formed by nuclear reaction in the stars and other elements were formed after the Big Bang?
Close, but not exactly. Hydrogen is not formed by nuclear reactions in stars, hydrogen was formed not long after the Big Bang, when the expanding universe had cooled sufficiently that an electron and a proton could combine to form a hydrogen atom. Helium and all the other elements that are heavier than hydrogen, were formed by the process of nuclear fusion, in stars.
Why is interstellar matter composed mostly of hydrogen helium and lithium?
The hydrogen and much of the helium in space are primordial; they formed after the big bang after the universe became cool enough for atoms. Some trace amounts of lithium formed as well. All heavier elements require stars in order to form.
Where are heavy elements like nitrogen and iron formed?
Such elements are formed within stars. The heavy elements which are currently here on Earth were formed in stars some time ago, and then they were blown into space in supernova explosions.
How are elements heavier than hydrogen formed?
They are formed inside of stars.
Where were all of the other elements formed?
they formed from different types of stars!
How are the elements formed in earth?
They're not formed here. They were formed in stars - mainly as they exploded.
Compare the elements formed in the big bang with elements formed through nuclear fusion in stars?
No elements were formed in the big bang. After quite some time, hydrogen began to form, and it is the main constituent of stars. The main by-product of nuclear fusion in stars is helium.
What are the heavier elements in this universe formed by?
a series of stars
Do stars form new elements?
Yes - in fact, most of the elements ONLY exist because they were formed in stars.
What is formed from stars?
All elements up to Iron are produced by smaller stars. heavier elements (everything heavier then iron) are produced from larger stars when they go supernova.
Where were the elements carbon oxygen and iron formed?
The elements carbon, oxygen, and iron were formed in the interiors of stars that have since dies and exploded, spreading their contents through dust clouds that later formed other stars and solar systems.
What chemical elements are formed inside stars?
All of them except hydrogen.
How is the gold in a wedding ring evidence of ancient stars that ran their life cylcles long before the solar system came into being?
When the Universe was created in the moment of the big bang, only simple molecules like helium and hydrogen were formed. These gasses later formed stars which created other elements up to iron, but no heavier.Heavier elements can not be formed by nuclear fusion in stars, and are not believed to be formed during the Big Bag. It is theorized that these elements can only be formed when massive stars explode at the end of their life cycle (in a supernova explosion).Therefore, the presence of gold itself means that a supernova exploded and formed the metals.
When was selenium made?
Like most elements, selenium was formed in the cores of stars.
