Actinium is the first member of the actinoids family.
Actinium is a solid, inner transition metal, radioactive, very rare.
Americium is a member of the actinoids family.
Actinides group
Actinoids.
actinide
Actinium is a radioactive natural chemical element, member of the family of actinides; actinium is a solid metal, very rare in the nature.
Actinium belongs to actinides. It has atomic no. 89
Actinium is a member of the actinides family; actinium is a natural chemical element, metal, solid, extremely radioactive.
The elements under the scandium family are as follows: ► scandium ► yttrium ► lanthanum ► actinium
Actinium is a natural chemical element, radioactive; actinium is a decay product of uranium.
Actinium is the first member of the actinoids family.
Actinium is a radioactive natural chemical element, member of the family of actinides; actinium is a solid metal, very rare in the nature.
Actinium (Ac) is a chemical element.Actinoids is the name of the radioactive elements family which contain actinium.
Actinium belongs to actinides. It has atomic no. 89
Actinium is a member of the actinides family; actinium is a natural chemical element, metal, solid, extremely radioactive.
Actinium is a natural chemical element, it is not a man-made element.
it belong in the nitrogen family
Actinium is a trivalent chemical element.
Actinium is a trivalent chemical element.
Applications of actinium are: - neutron source as actinium-beryllium - radiotherapy
Actinium is a radioactive element with symbol Ac.
The elements under the scandium family are as follows: ► scandium ► yttrium ► lanthanum ► actinium