Actinoid element, also called actinide element, any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers.
12+ Actinides. This group holds its own unique position in any pictorial representation of the periodic table. Actinides with the highest mass numbers are synthesized by bombarding uranium, plutonium, curium and californium with ions of nitrogen, oxygen, carbon, neon or boron in a particle accelerator.
Actinides Actinide Chemical Elements from imgv2-1-f.scribdassets.com
Since in the first half of the actinide series (i.e. Actinides concept the actinides (sometimes called actinoids) occupy the bottom line of the periodic table 1—a row of elements normally separated from the others. Analogous to the lanthanide contraction.
This group holds its own unique position in any pictorial representation of the periodic table.
Actinides show a greater multiplicity of oxidation states. Since in the first half of the actinide series (i.e. Actinide series, a series of radioactive metallic elements in group 3 of the periodic table. From wikimedia commons, the free media repository.