Thallium (Tl) belongs to the Group 3 - Boron Family of elements. In the new IUPAC grouping, The Boron family is now Group 13.
its classified as an "other metal"
Actinides group
it belong in the nitrogen family
it belongs to a family
Thorium is a natural chemical element, a radioactive metal.
promethium
The chemical symbol of thorium is Th.
Thorium is a member of actinoids family.
it belong in the nitrogen family
Thorium is a natural chemical element.
Thorium is a member of the actinoids family, period 7 in the periodic table of Mendeleev. The half life of 232Th is 1,405.1010 years.
Thorium belongs to the actinides family that is found in row 7 of the periodic table. There are 15 elements in this family, including actinium, uranium, plutonium, neptunium, and lawrencium.
Thorium: natural chemical element, metal, solid, radioactive, actinoids family, period 7, atomic number 90, used in breeder reactors, etc.
carbon family
it belongs to a family
Hydrogen
Thorium is a natural chemical element, a radioactive metal.
promethium
Thorium (Th) is a member of the actinoids family.