Noun
any of a series of radioactive elements with atomic numbers 89 through 103
Source: WordNetActinide ferromagnets A number of actinide compounds are ferromagnets at room temperature or exhibit ferromagnetism upon cooling. Source: Internet
A key need is application of actinide solid solutions in durable crystalline host phases. Source: Internet
Click here for more information. main infobox Fermium is a synthetic element with symbol Fm and atomic number 100. It is a member of the actinide series. Source: Internet
Characteristics Physical properties Californium is a silvery white actinide metalsfn with a melting point of convert and an estimated boiling point of convert.sfn The pure metal is malleable and is easily cut with a razor blade. Source: Internet
All but one of the actinides are f-block elements, corresponding to the filling of the 5f electron shell ; lawrencium, a d-block element, is also generally considered an actinide. Source: Internet
Also, a common presentation is to put all 15 lanthanide and actinide columns below, while the f-block only has 14 columns. Source: Internet