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When are hydrogen and helium form?
Hydrogen and helium are formed in Sun.
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 much of the universe ordinary matter is thought to be helium and does the big bang theory support this answer?
Around 24% of the ordinary matter in the universe is thought to be helium. The Big Bang theory supports this by explaining how helium was formed in the early universe through nuclear fusion reactions when temperatures were high enough to convert hydrogen into helium.
What makes up two sun?
Hydrogen is the most common element in the universe as a whole; about 75% of the universe by mass is hydrogen (since hydrogen is also the lightest element, that means that the percentage by number of atoms is even higher) . Helium is second; oxygen is a fairly distant third.
Where are gases like hydrogen and helium most abundant?
Hydrogen and helium are the first elements produced in the universe after the big-bang.
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.
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.
How is helium formed in the universe?
Helium is formed in the universe through nuclear fusion processes that occur in stars. During the fusion of hydrogen atoms in the core of a star, helium is produced as a byproduct. This process releases a large amount of energy and is responsible for the creation of helium in the universe.
When are hydrogen and helium form?
Hydrogen and helium are formed in Sun.
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.
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.
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.
The two elements most abundant in the universe are?
Hydrogen and helium are the two most abundant elements in the universe.
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 much of the universe ordinary matter is thought to be helium and does the big bang theory support this answer?
Around 24% of the ordinary matter in the universe is thought to be helium. The Big Bang theory supports this by explaining how helium was formed in the early universe through nuclear fusion reactions when temperatures were high enough to convert hydrogen into helium.
What fraction of the mass in the known universe is made up of hydrogen and helium?
By mass, hydrogen = 75%, helium = 23%.
What are all the stars in the universe comprised of?
Hydrogen And Helium
