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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.
When are hydrogen and helium form?
Hydrogen and helium are formed in Sun.
What is the process called which formed elements from hydrogen and helium after the Big Bang occured?
Fusion or Nuclear Fusion
What temperature did the Universe have when hydrogen and helium formed?
Helium is formed by the fusion of hydrogen at temperatures above 3.106 kelvin.
What is the role of hydrogen and helium in the sythesis of elements?
Hydrogen and helium are the most abundant elements in the universe. And stars use them for power. To put it simply, hydrogen is fused into helium, and helium into carbon. All the heavier elements are made from there up through iron. The trans-iron elements are made is a supernova. It could be argued that hydrogen and helium are the basic building blocks of other elements.
What elements were formed during stellar evolution?
Everything except Hydrogen & Helium (and part of the Helium is also formed within stars).
What elements are produced in the sun?
From hydrogen, isotopes of helium are formed through nuclear reactions.
Where did most of the elements heavier than Hydrogen and Helium form in the Universe?
Other elements were formed in stars by nucleosynthesis.
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.
What are the two main elements found in the stars?
Hydrogen and helium
Does helium have hydrogen in it?
No. Helium and Hydrogen are two different elements.
When are hydrogen and helium form?
Hydrogen and helium are formed in Sun.
What is the sun formed from?
hydrogen, helium, and a small amount (less than 2%) of heavier elements
The two elements most abundant in the universe are?
Hydrogen and helium are the two most abundant elements in the universe.
How are elements H an He made?
Hydrogen was formed the first by nucleosynthesis from protons; helium is obtained from hydrogen by fusion at very high temperatures.
Gas giants have atmospheres composed primarily of helium and what?
Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.Hydrogen and helium, the most common elements in the Universe.
What is the process called which formed elements from hydrogen and helium after the Big Bang occured?
Fusion or Nuclear Fusion
