answersLogoWhite

0


Best Answer

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%.



User Avatar

Wiki User

8y ago
This answer is:
User Avatar
More answers
User Avatar

AnswerBot

3mo ago

Hydrogen 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.

This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Which element makes up 20 percent of earths universe?
Write your answer...
Submit
Still have questions?
magnify glass
imp