锕 (ā) - Actinium — a radioactive chemical element with symbol & a silvery-white metallic element.

锕Tone 1

ā ｜ 12 strokes ｜ radical:

安

锕 · ā

Actinium — a radioactive chemical element with symbol Ac and atomic number 89;

a silvery-white metallic element.

Actinium — a radioactive chemical element with symbola silvery-white metallic element.

Usage highlights

Actinium seriesActinide elementsActinium isotopeActinium compoundActinium discovery
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Usage & contexts

Examples

  • Actinium is a radioactive element (锕系元素).
  • The actinide series includes actinium (锕系元素).
  • Actinium-227 is used in scientific research (锕-227).

Collocations

  • Actinium series(锕系)
  • Actinide elements(锕系元素)
  • Actinium isotope(锕同位素)
  • Actinium compound(锕化合物)
  • Actinium discovery(锕的发现)

Cultural background

FAQ
  • Actinium is named after the Greek word 'aktis' meaning 'ray' or 'beam', referring to its radioactivity.
  • Discovered in 1899 by French chemist André-Louis Debierne.
  • Primarily used in scientific research due to its radioactivity.

FAQ