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Hydrogen was initially formed in the 'Big Bang' which initiated this universe. Helium is formed by the fusion of hydrogen atoms, inside stars. This reaction is what causes stars to shine, and give off heat.

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βˆ™ 12y ago
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βˆ™ 5mo ago

Helium was primarily formed during the Big Bang about 13.8 billion years ago, while hydrogen was formed shortly after in stars through nuclear fusion. The nucleosynthesis of helium and hydrogen are fundamental processes in the evolution of the universe.

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Q: Where were helium and and hydrogen formed?
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Related questions

When are hydrogen and helium form?

Hydrogen and helium are formed in Sun.


What gas is formed when hydrogen atoms fuse?

The gas formed when hydrogen atoms fuse is helium. Stars do this.


How are elements beyond hydrogen and helium formed?

Fnxbm


Is hydrogen found in the universe formed by stars?

No. The hydrogen in the universe was formed during the Big Bang. Stars consume hydrogen, fusing it into helium.


What elements were formed during stellar evolution?

Everything except Hydrogen & Helium (and part of the Helium is also formed within stars).


What does helium have to do with a star?

Helium is formed in the core of the star (like the sun) by the nuclear fusion of hydrogen isotopes.


What is the formula of the hydride formed by helium?

The formula of the hydride formed by helium is HeH+. It's a cationic species known as the helium hydride ion, which is formed when helium reacts with hydrogen ions in very low-temperature environments such as interstellar space.


Are Saturn's yellow bands formed by hydrogen and helium?

Cristalized Ammonia


Is the sun made out of core?

No, it is formed by fusion of hydrogen and helium molecules.


What element is formed when the hydrogen bomb explodes?

When a hydrogen bomb explodes, the primary element formed is helium. This occurs through the process of nuclear fusion, where hydrogen isotopes combine to form helium atoms, releasing a large amount of energy in the process.


What temperature did the Universe have when hydrogen and helium formed?

When hydrogen and helium atoms first formed in the universe, the temperature ranged from about 3000 to 4000 Kelvin. This temperature allowed protons and electrons to combine to form neutral hydrogen atoms, a process known as recombination. Subsequently, the universe became transparent to radiation for the first time.


What gas is formed by a discharge from oxygen?

Oxygen formed on earth by compound of nuclear fission of sun with helium and hydrogen.