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coronium
[ kuh-roh-nee-uhm ]
noun
Astronomy.
- a hypothetical element once thought to exist because certain spectral lines in the emission spectrum of the solar corona could not be identified by known elements. These lines were subsequently found to be emitted by certain highly ionized metals.
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亚洲网紅露点 History and Origins
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Example Sentences
Examples have not been reviewed.
But Young聽and Harkness鈥檚 discovery was taken down in the 1930s, when scientists聽found out that the coronium line was actually produced by iron at extremely high temperatures.
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They dubbed the new substance 鈥渃oronium.鈥
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In 1869 bright lines were found in the spectrum of the corona, one line in the green indicating the presence of an element not then known on the earth and hence called coronium.
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One blank space, it is thought, may be filled some day by the gas coronium, which like helium has been discovered in the sun, but unlike it has not yet been detected here.
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The name 鈥渃oronium鈥 has therefore been given to the supposed gas which forms it.
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