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.
The name helium is derived from the Greek word helioswith the meaning of sun.
Helium is an element, featuring on the Periodic Table of the elements. Helium was first discovered in the sun spectroscopically. It get its name from the Greek word, Helios, meaning "the sun".
Helium was first discovered in the sun spectroscopically. It get its name from the Greek word, Helios, meaning "the sun".
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.
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.
original firstling primordial
The 'big bang' theory.
The name helium is derived from the Greek word helioswith the meaning of sun.
Earliest, basic, fundamental, primal, original...
Helium is from the Greek word, Helios, meaning 'the sun'.
Helium is from the Greek word, Helios, meaning 'the sun'.
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The primordial God Erebus (Έρεβος) meaning darkness. Son of Chaos.
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