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For the universe in which the earth exists, hydrogen accounts for 75% and helium for 23%. All the remaining elements , together, account for 2%. So there is no element which accounts for 20%.
Furthermore, helium is very rare on earth - it accounts for approx 8 parts per billion or 0.0000008%.
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ProfessorHydrogen is the most abundant element in the universe and makes up about 75% of its elemental mass. Helium is the next most abundant element, making up about 25% of the universe's elemental mass. Other elements, including oxygen, carbon, and iron, make up a very small percentage of the universe's elemental composition.
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Which element makes up 78 percent earths atmosphere?
Nitrogen makes up 78% of Earth's atmosphere.
What element makes up approximately 78 percent of the earths atmosphere?
Nitrogen makes up approximately 78% of Earth's atmosphere.
WHAT ELEMENT MAKES UP NEARLY ONE PERCENT OF THE EARTHS ATMOSPHERE?
Argon makes up nearly 1% of Earth's atmosphere. It is a noble gas that is colorless, odorless, and inert.
What element makes 77 of earths atmosphere?
Nitrogen makes up 78% of the Earth's atmosphere.
What makes up about seventy five percent of the earths surface?
Water makes up about seventy five percent of the Earth's surface.
