Actinium is found in uranium and thorium ores.
Actinium is a radioactive natural chemical element, member of the family of actinides; actinium is a solid metal, very rare in the nature.
Actinium exist in minute traces in uranium and thorium ores.
Actinium is found in very low concentrations in uranium ores, probably as an oxyde.
francium is found in thorium and uranium ores in the earth's crust obtained by the decay of actinium
Actinium is a radioactive metal; no taste !
no actinium is not a magnet no actinium is not a magnet
part of actinium radioactive
Actinium is a trivalent metal; only in the actinium hydride is divalent.
Actinium is a metal.
Applications of actinium are: - neutron source as actinium-beryllium - radiotherapy
Actinium may be used in actinium-beryllium neutron sources or in radiotherapy.
Actinium is rarely used:- as actinium-beryllium neutron source- in radiotherapy