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What elements are formed in cool stars?
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.)
Where do heavy elements such an iron come from?
From the outer layers emitted by a supernova.outer layer of a supernova.
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.
What is the relationship between the periodic table and a supernova?
The elements on the periodic table were created by stars through nuclear fusion. We use the term stellar nucleosynthesis to describe what stars are doing through fusion. Stars fuse hydrogen into helium, and then start making heavier elements by a different fusion process. But stars can only make elements up through iron. They can't make the heavier elements. Enter the supernova. A supernova is that "big blast" that occurs at the end of the life of some stars. In a supernova, the trans-iron elements are formed. That is, all the elements heavier than iron are formed in a supernova. Because the elements heavier than iron are formed in a supernova, we can say that there is a relationship between the supernova and the periodic table of elements.
What conditions of a supernova cause elements that are heavier than iron to form?
Because for a star to fuse elements heavy elements (iron and heavier) it would actually consume energy rather than liberate it. That doesn't work well to keep the star "alive." The explosion of the supernova itself can create these heavier elements because of the heat of the blast.
How do stars other elements?
for making elements from helium to nickel and iron, thermonuclear fusionfor making elements past nickel and iron a supernova explosion is needed to force nuclei to fuse more, this destroys the star
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 do stars make other elements?
for making elements from helium to nickel and iron, thermonuclear fusionfor making elements past nickel and iron a supernova explosion is needed to force nuclei to fuse more, this destroys the star
Where in the universe are heavy elements made?
Light elements are made in light weight stars via stellar nucleosynthesis. Elements as heavy as iron form in the cores of massive stars. Anything heavier than iron requires a supernova--the collapse and explosion of a super massive star.
How are elements with nuclei larger than iron nuclei formed?
Supernova form heavier elements
Which elements would be present in a star just before it forms a supernova?
Iron
Why are all elements heavier then iron created during a supernova?
The rapid collapse of the star compresses atoms together and may cause nuclear fusion and make heavier elements.
