Actinium is found in extremely low concentrations in residues from uranium ores (uraninite, pitchblende).
Actinium is a highly radioactive element and is not safe to taste or ingest. It can pose severe health risks due to its radioactivity. It is not recommended to come into contact with actinium in any form.
Actinium was discovered in residues from the uranium and radium extraction from ores. The concentration of Ac is extremely low. But actinium can be prepared and artificially, as a result of nuclear reactions. Andre Louis Debierne (France) discovered actinium in 1899. Friedrich Oskar Giesel (Germany) independently discovered it in 1902 but Debierne is largely credited with the discovery.
Possible uses: neutron source, alpha rays source for radio-therapy
Not soluble in water (probably only a slow reaction), soluble in acids.
Well, honey, actinium is not magnetic. It's a radioactive element that doesn't have magnetic properties. So, if you were planning on sticking a magnet to it, I hate to break it to you, but it ain't gonna work.
Batteries doesn't contain actinium.
Actinium is found in uranium and thorium ores.
Discoverers of actinium: Andre Louis Debierne - 1899 Fritz Giesel - 1902 Actinium is found in uranium minerals.
Actinium exist in minute traces in uranium and thorium ores.
Actinium exist in all uranium minerals: ex. uraninite (pitchblende).
Actinium exist in minute traces associated with uranium or thorium ores.
Actinium is found in very low concentrations in uranium ores, probably as an oxyde.
Actinium is separated from pitchblende. Actinium, AC, is found in uranium ore, a product of radioactive decay of uranium and ?æother unstable elements.
in 1899 in France.
From Wikipedia "Actinium is found in trace amounts in uranium ore, but more commonly is made in milligram amounts by the neutron irradiation of 226Ra in a nuclear reactor. Actinium metal has been prepared by the reduction of actinium fluoride with lithium vapor at about 1100 to 1300°C."
Actinium does not form a common molecule like many nonmetals do; instead, it typically exists in metallic form or as part of compounds. As a member of the actinide series, actinium primarily occurs in the form of actinium(III) compounds, such as actinium oxide (Ac2O3). These compounds can form when actinium reacts with oxygen or other elements, but it does not have a stable, common molecular structure like diatomic or triatomic molecules found in other elements.
Actinium is a trivalent metal; only in the actinium hydride is divalent.