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What are two elements which are abundant in nebulae?
Ionized hydrogen and helium are the most abundant chemical elements in nebulae.
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.
How are elements beyond hydrogen and helium formed?
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Where are gases like hydrogen and helium most abundant?
Hydrogen and helium are the first elements produced in the universe after the big-bang.
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.
Why do all stars have hydrogen and helium?
Hydrogen and helium were the first elements formed after the Big Bang, and they continue to be the most common elements in the universe due to their abundance. Stars form from clouds of gas and dust in space, and since hydrogen and helium are the most abundant elements available, they make up the majority of a star's composition.
The two elements most abundant in the universe are?
Hydrogen and helium are the two most abundant elements in the universe.
What are two elements which are abundant in nebulae?
Ionized hydrogen and helium are the most abundant chemical elements in nebulae.
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 planet could hydrogen be from?
Hydrogen is not from any planet. Hydrogen was formed in the earliest times of the universe. It is primordial. 78% of ordinary matter in the universe is Hydrogen with most of the rest being Helium. As time went on clouds of hyrdrogen collapsed and formed stars. In the centre of these stars the hydrogen and helium were converted to other elements like silicon and oxygen and iron. It is from these elements that planets were formed later. So far from hydrogen being from a planet, planets are made from hydrogen.
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 most common elements of the universe?
Hydrogen and helium.
What are the two main gases that make up a young star?
The two main gases that make up a young star are hydrogen and helium. These elements were formed during the Big Bang and are the most abundant elements in the universe.
How are elements beyond hydrogen and helium formed?
Fnxbm
What are the four main physical elements of the universe?
Hydrogen, helium, oxygen, and carbon are the most abundant elements in the universe.
Where are gases like hydrogen and helium most abundant?
Hydrogen and helium are the first elements produced in the universe after the big-bang.
Where were helium and and hydrogen formed?
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.
