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Helium-4 mostly arises from alpha decay of heavy radioactive elements. Helium-3 is primordial helium, and is extremely rare on Earth. Whether or not a minute proportion of the Earth's total helium-4 is regarded as primordial depends very much on the context of the particular article.
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Why is interstellar matter composed mostly of hydrogen helium and lithium?
The hydrogen and much of the helium in space are primordial; they formed after the big bang after the universe became cool enough for atoms. Some trace amounts of lithium formed as well. All heavier elements require stars in order to form.
What is primordial material?
Primordial means it is the earlier form of its kind or dates from the start of a planet or universe. Primordial material is sometimes found on meteorites that fall to Earth.
Primordial in a sentence?
We have been using this primordial book since the Vietnam War, it seems.
Use primordial in a sentence?
Long ago some scientists think living things came from a primordial soup.
Helium supported the big bang theory because?
The proportions at which elements occur in the observable universe closely match predictions of the Big Bang theory. According to this model, only the simplest elements would have condensed from the primordial quark-gluon plasma: hydrogen and helium. Heaver elements would have formed inside the first stars and supernovae. Most of the visible matter in the universe would therefore be hydrogen and helium, with heavier elements in lesser numbers, proportional to their atomic weight.
The discovery of cosmic microwave background radiation and primordial helium gas was scientific evidence supporting what theory?
The 'big bang' theory.
How would you write primordial on a sentence?
primordial
How do you use primordial in a sentence?
The primordial to a cat is a kitten!
Sentence with primordial?
Yes, say it Primordial, or existing from the beginning of time. Anything is possible, really.
When was Primordial Undermind created?
Primordial Undermind was created in 1988.
When was Primordial Lovers created?
Primordial Lovers was created in 1970.
Why is interstellar matter composed mostly of hydrogen helium and lithium?
The hydrogen and much of the helium in space are primordial; they formed after the big bang after the universe became cool enough for atoms. Some trace amounts of lithium formed as well. All heavier elements require stars in order to form.
Can you give me a primordial sentence?
Animals hunting for food is a primordial instinct.
What is primordial goo?
It refers to liquid and chemical mixture from which life on Earth began. Biologists also call it the primordial soup, or the primordial sea.
What is primordial material?
Primordial means it is the earlier form of its kind or dates from the start of a planet or universe. Primordial material is sometimes found on meteorites that fall to Earth.
Sentence with primordial in it?
the universe originated some finite time ago from a primordial state
Primordial in a sentence?
We have been using this primordial book since the Vietnam War, it seems.
