radioactive
All are radioactive and all of them can show the oxidation state of +3
Yes. All of the actinides are radioactive.
All actinides are radioactive elements and some are man made.
All actinides are radioactive elements and some are man made.
Thorium (90)
The group 3 of the periodic table include lanthanides and actinides.
The actinides
Because the nuclei of actinides are unstable and spontaneously break apart, all actinides are radioactive.
mosley
Rare Earth elements or lanthanides are placed in the period 6 of the periodic table of Mendeleev. Actinoids are placed in the period 7 of the periodic table of Mendeleev.
They are F-block elements
No, it is a metal, as all the other actinides are.