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What percentage of the solar nebula's mass consisted of hydrogen and helium gases?
Wiki User
∙ 14y ago
98%
Wiki User
∙ 14y ago
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What percentage of a star's total lifetime is spent on the main sequence?
Roughly 90% of a star's total lifetime is spent on the main sequence, where it fuses hydrogen into helium in its core. After this stage, the star will evolve off the main sequence and follow a different path, such as becoming a red giant or a supernova.
What is the percentage of gases found within 10 km of earth's surface?
The Earth's atmosphere within 10 km of the surface contains approximately 78% nitrogen, 21% oxygen, and the remaining 1% is made up of trace gases such as argon, carbon dioxide, neon, helium, and methane.
What is a example of an element in science?
An example of an element in science is oxygen. Oxygen is a chemical element with the symbol O and atomic number 8. It is essential for life and is found in the Earth's atmosphere and in many compounds.
How much helium would it take to lift the weight of the average person?
On average, a person weighs about 70 kg (154 lbs). To lift this weight, it would take approximately 70 cubic meters of helium at standard atmospheric pressure. This is a rough estimate and actual lifting capacity would depend on various factors like inflation pressure and volume.
Why do people live in regions?
People live in plains regions because of its natural sources such as coal, gemstones, cement, clays, limestone, granite, helium, gold, copper, uranium, and oil, etc., and also there is a lot of farming land for people to work as farmers.
What huge clouds of helium and hydrogen serve as a birthplace for stars?
Nebulas.
What percentage of the mass of the solar nebula consisted of elements other than hydrogen and helium?
98% of the solar nebula is made up of hydrogen and helium so its 2 %
Are nebulas bigger than earth?
Nebulas are interstellar clouds consisting of dust, hydrogen, helium and other ionized gases. Nebulas vary in size, so some are bigger than Earth, and others are not.
Jupiter is mostly made up of hydrogen and helium true or false?
True. Jupiter is consisted of mainly hydrogen and helium. 90% hydrogen, 8% helium and 2% other gases
The jovian planets contain a large percentage of the gases?
Hydrogen and Helium
What is the concentration of helium on Jupiter?
The concentration, in the atmosphere, is about 10%.
What is the percentage of hydrogen and heilium in Jupiter's atmosphere?
25 percent helium
Which of these gases is presnet in the greatest percentage in the composition of the sun?
Hydrogen & helium
Are gas planets frozen like ice crystals?
Yes,mostly they are like a "ice fog" and are consisted of mainly helium and hydrogen.
What are the gases percentage on Jupiter?
Jupiter's atmosphere is made of 90% hydrogen and 10% helium
What are the two main elements found in the stars?
Hydrogen and helium
Why would an older main sequense star be composed of a higher percentage of helium than a young main sequence star?
A star's nuclear fusion reaction converts hydrogen into helium, and generates energy through this process. A "new" star has a fairly low percentage of helium, but over the course of billions of years, it fuses the hydrogen "fuel" into helium "ash".
