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Actinide - Wikipedia, the free encyclopedia (420 words) |
 | The actinide series encompasses the 15 chemical elements that lie between actinium and lawrencium on the periodic table with atomic numbers 89 - 103. |
| The actinides display less similarity in their chemical properties than the lanthanide series, for instance exhibiting a wider range of oxidation states, which initially led to confusion as to whether actinium, thorium and uranium should be considered d-block elements. |
| An Organometallic compound of an actinide is known as an organoactinide. |
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