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Explain how heavier elements are formed from hydrogen within the core of a star?
Wiki User
∙ 10y ago
Nuclear fusion
Wiki User
∙ 10y ago
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As heavier elements are formed by fusion a massive star expands into?
Stellar evolution
Why is iron the heaviest element that can be formed in stars?
It isn't. Heavier elements are formed in stars as well. Iron is basically the heaviest element for which energy can be gained. When converting iron into heavier elements, energy is lost. However, this doesn't stop supernovae, at a temperature of about one gigakelvin (a billion degrees), to form heavier elements. In fact, the interior of stars is practically the ONLY way such elements can be formed.
Explain how the heavier elements such as iron are produced in astrophysical processes?
Heavier atoms which could not be formed as a result of fusion are produced as the result of a star that has run out of fuel exploding. It essentially forces atoms which do not release energy to fuse together.
How are most of the elements with nuclei heavier than those of hydrogen and helium formed?
Well, Helium is an element, and "substance" can mean a combination of elements and compounds... which are formed according to their chemical properties. Assuming you were asking about pure elements, rather than substances, all elements up to Iron-56 are formed by nuclear fusion, presumably inside of stars. This is due to to Iron-56 being the most stable nucleus in the periodic table. Hydrogen-1 forms Helium-4, Helium combines to form Beryllium-8, Carbon-12, and Oxygen-16. And so on.... up to Iron-56. Fusion of heavier compounds will not result in excess energy (e.g. a star's heat and light) so those nuclear reactions will not sustain a star. Therefore, all elements heavier then Iron-56 are formed by the extraordinary conditions of a super nova. Because earth has abundant elements heavier than Iron-56, it is thought that the matter in our Solar System has been through several solar cycles... In other words, "we are all made of stars".
Why do heavier elements form at the centre of the sun?
Nuclear Fusion Processes, those that form new elements, require both high temperatures and pressures. These are only found at or near the center of the star. Hydrogen fusion is the easiest (excepting deuterium but that's a bit too detailed for here) and takes place in the smallest of stars. (Brown Dwarves don't count as no fusion is going on there). For successively heavier fusion reactions creating heavier elements higher temperatures and pressures are required and therefore take place nearer the center of the star within the sphere of hydrogen fusion. The very largest star therefore have an onion like structure where more and more internal layer are forming heavier and heavier elements. The heaviest element that can be formed by energy producing reactions is Iron. After that the formation of even heavier elements absorbs energy. This is why all the elements above Iron are thought to form in Super-novas reactions where there is incredible temperatures and pressures and no worry that energy absorbing reactions are going to shut things down.
How are elements heavier than hydrogen formed?
They are formed inside of stars.
How are heavier elements formed from hydrogen within the core of a star?
by the process of nuclear fusion
Fusing hydrogen atoms into heavier elements produces?
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
Where did most of the elements heavier than Hydrogen and Helium form in the Universe?
Other elements were formed in stars by nucleosynthesis.
How are elements formed from hydrogen?
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.
What is the sun formed from?
hydrogen, helium, and a small amount (less than 2%) of heavier elements
Why does your sun have 2 percent heavier elements and from where do they come?
I think it's our Sun which gets heavier elements from fusion of hydrogen and other light elements.Edit: Our Sun does create helium from hydrogen by fusion, but that's all. The reason it has heavier elements is that these come from the nebula that formed the Sun. The heavier elements are thought to have come from stars that exploded as "supernovas", a long time ago.
What is a hypothesis to explain the presence of iron and other heavier elements than iron?
Chemical elements are formed in the Universe by stellar nucleosynthesis.
What does nucleur fusion create inside stars?
First hydrogen nuclei fuse to form helium, and then as the star ages heavier and heavier elements are formed.
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.)
How are elements heavier than iron are formed?
Elements heavier than iron are formed in super-nova explosions.
Was carbon the first atom created after the big bang theory?
No, hydrogen was. other heavier elements, starting with helium, were formed by the nuclear fusion of hydrogen nuclei.
