Actinium is radioactive.
The Ac-227 isotope has a half life of 21.77 years
Yes, Ac (Actinium) and Ra (Radium) are radioactive elements, while Si (Silicon) is not inherently radioactive.
Actinium is a radioactive element with symbol Ac.
The radioactive element in period 5 of the periodic table is Actinium (Ac). It is a radioactive metal with atomic number 89.
Actinium (Ac) is a chemical element with the atomic number 89, located in the actinide series of the periodic table. It is a radioactive metal that is primarily used in research and some specialized industrial applications.
Actinium is separated from pitchblende. Actinium, AC, is found in uranium ore, a product of radioactive decay of uranium and ?æother unstable elements.
Actinium (Ac) is a chemical element.Actinoids is the name of the radioactive elements family which contain actinium.
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"Radioactive."
non radioactive element
radioactive decay
The eighty ninth element in the periodic table is Actinium, with the symbol Ac and atomic number 89. It is a radioactive element that is part of the actinide series.
All uranium compounds are radioactive to some degree.