砹 (ài) - Astatine — a radioactive chemical element with symbol & extremely rare in nature.

砹Tone 4

ài ｜ 10 strokes ｜ radical:

安

砹 · ài

Astatine — a radioactive chemical element with symbol At and atomic number 85;

extremely rare in nature.

Astatine — a radioactive chemical element with symbolextremely rare in nature.

Usage highlights

chemical element astatineradioactive astatineastatine isotopeastatine compoundastatinehalogen element

Synonyms

Usage & contexts

Examples

  • Astatine is a halogen element (砹元素).
  • It is the rarest naturally occurring element on Earth (地球上最稀有的天然元素).
  • Scientists study its radioactive properties (放射性性质).
  • Astatine-211 is used in nuclear medicine (核医学).

Collocations

  • chemical element astatine(砹元素)
  • radioactive astatine(放射性砹)
  • astatine isotope(砹同位素)
  • astatine compound(砹化合物)
  • astatine-211(砹-211)
  • halogen element(卤族元素)

Cultural background

FAQ
  • 砹 is a modern created character specifically for naming the chemical element Astatine.
  • The character follows Chinese character formation principles with 石 (stone/rock) radical indicating solid non-metal and 艾 providing phonetic approximation.
  • As a scientific term, it has no traditional cultural significance beyond its chemical context.

FAQ