| NOUN | actinium | - |
| SYNO | Ac | actinium | atomic number 89 |
NOUN article.ind sg | pl
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Usage Examples English
- Actinium can be naturally found in traces in uranium ore as 227Ac, an α and β emitter with half-life 21.773 years.
- Actinium(III) oxide is the only oxide that actinium can form, with the chemical formula Ac2O3. In this compound, actinium is in the oxidation state +3.
- Actinium nitrate can be obtained by dissolving actinium or actinium hydroxide in nitric acid.
- In 1935, Perey read a paper by American scientists claiming to have discovered a type of radiation called beta particles being emitted by actinium and was skeptical because the reported energy of the beta particles didn't seem to match actinium.
- The strongest base is of actinium. All compounds of actinium are colorless, except for black actinium sulfide (Ac2S3).
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Contains translations by TU Chemnitz and Mr Honey's Business Dictionary (German-English only).
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