Aktinyum-224'ün yarı ömrü 2.7 saattir.
- The half life of actinium-224 is 2.7 hours.
Aktinyum radyoaktif bir elementtir.
- Actinium is a radioactive element.
... and not act in terms of short-term political interest. ...
... Governments, in part, are supposed to be there to act in ...