砹 · ài
astatine (element 85, At)
Meanings & readings
Meaning & readings
astatine (element 85, At)
- Mandarin
- ài
- Cantonese
- ngaai6
Unihan definitions and selected character readings. Read the word to establish its pronunciation in context.
Form & structure
Writing & identity
- Unicode
- U+7839
- Radical
- 石 · 112
- Strokes
- 10 · Unihan
- Residual
- 5
Source record · Unihan 17.0. Individual senses and historical claims have not yet been reviewed by zimai.
Stroke order
10 strokesModern stroke order; regional conventions can differ. Stroke medians: Make Me a Hanzi via HanziLookupJS, drawn as an even pen line.
Graphical structure
How to read these symbols
⿰ left–right · ⿱ above–below · ⿻ overlap. Dotted boxes indicate positions, not missing characters. Each symbol describes the components that follow it; nested symbols describe a component in more detail. Source codes identify alternative analyses, not a writing sequence or an etymology.
BabelStone IDS · 2025-06-27. Region tags are preserved; 〾 marks approximation and {n} identifies an unencoded source component. These describe graphical structure, not historical derivation.
Words & connections
Words using 砹
Character connections
No reverse component match in this collection.
History & distinctions
Related forms
No simplified/traditional variant property is retained for this record.
Sources & reference
Evidence & next depth
Retained Unihan properties
- kMandarin
- ài
- kCantonese
- ngaai6
- kDefinition
- astatine (element 85, At)
- kTotalStrokes
- 10
- kRSUnicode
- 112.5
- kTGH
- 2013:4474
Readings across dictionaries
- Hanyu Da Zidian
- ài 42422.070
- Xiandai Hanyu · 1983
- ài 0004.060
- Tongyong Guifan · 2013
- ài 002.130
- Mandarin / Cantonese · SMSZD
- ài粵ngaai6