Niton

Japanese: niton
Niton

...Furthermore, E. Rutherford, F. Soddy, and W. Ramsay of England confirmed that this gas is an inert gas and belongs to group 0 of the periodic table, and called it radium emanation. Ramsay and R.W. Gray also measured its specific gravity and showed that it was the heaviest gas known to date. When the gas was liquefied in a glass tube, it emitted phosphorescence, so they proposed calling it niton, after the Latin nitere (to shine). However, at an international conference in 1923, the name radon was adopted because it was produced by decomposition from radium. In nature, 219 Rn (also called actinon, written as An)...

*Some of the terminology that mentions "niton" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…さらにイギリスのE.ラザフォードら,F.ソディ,W.ラムゼーは,この気体が不活性ガスで,周期表中0族に属することを確かめ,ラジウムエマネーションradium emanationと呼んだ。またラムゼーはグレーR.W.Grayとともに比重の測定からそれまでに知られた最も重い気体であることを示し,ガラス管中で気体を液化するとリン光を発するのでラテン語のnitere(輝く)にちなんでニトンnitonと呼ぶことを提唱したが,1923年国際会議でラジウムから変脱生成するものということからラドンの名称が採用された。天然には,219Rn(アクチノンactinonともいい,Anと書く。…

※「niton」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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