What 氡 means
It is the Chinese name for radon.
氡气 means radon gas. 气 marks it as a gas; 冬 hints at the character's Mandarin pronunciation.
The older Chinese term was 镭射气 (“radium emanation”). International chemists settled on radon in 1923. Japanese writes it ラドン; Chinese varieties share 氡 but pronounce it differently.
Scientific and technical; used in Chinese chemistry and building-safety writing.
Who writes 氡
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Related characters
3
CJK Unified Ideograph-6C14
The left-side part of 氡; in Chinese element names, it marks a gaseous substance.
CJK Unified Ideograph-51Ac
The sound component of 氡; it hints at the character's Mandarin pronunciation.
CJK Unified Ideograph-6C26
The Chinese name for helium, another gas element built with the gas marker 气 and a sound component.
Questions people ask
1Why does 氡 show as a box on some devices?
Because that device's fonts have no glyph for it. The character is still correct and still copies correctly — the box is a missing glyph, not a broken character.
More like this
9
How to type or find 氡
- Also called
- 镭射气
- Search it as
- radon · Rn · 氡气 · Chinese radon character
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Windows (Word)
Windows
HTML
氡CSS
\6C21Pinyin
Enter dong in a Chinese Pinyin input method, then select 氡.
Cangjie
In a Cangjie Chinese input method, enter ONHEY for 氡.
Codes and encoding1 code points
HTML decimal
氡
HTML hex
氡
CSS content
content: "\6C21";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%E6%B0%A1
1
On screen
1
Code points
1
JS .length
3
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.