Suchergebnisse
Suchergebnisse:
A block of the periodic table is a set of elements unified by the atomic orbitals their valence electrons or vacancies lie in. [1] The term seems to have been first used by Charles Janet. [2] Each block is named after its characteristic orbital: s-block, p-block, d-block, f-block and g-block .
- Group (periodic table)
In chemistry, a group (also known as a family) [1] is a...
- Group (periodic table)
In chemistry, a transition metal (or transition element) is a chemical element in the d-block of the periodic table (groups 3 to 12), though the elements of group 12 (and less often group 3) are sometimes excluded. The lanthanide and actinide elements (the f-block) are called inner transition metals and are sometimes considered to be ...
The f block elements are the lanthanides and actinides and are called the inner transition elements because of their placement in the periodic table due to their electron configurations. The f orbitals of the electron shell are filled with “n-2.” There is a maximum of fourteen electrons that can occupy the f orbitals.
Block: f-Block. Lanthanoide und Actinoide (innere Übergangsmetalle) werden durch den f-Block definiert. Sie besitzen zwei Valenzelektronen in der äußersten Hauptschale, ihre chemischen Unterschiede sind entsprechend gering.
f-Block: gegenüber dem vorhergehenden Element kommt ein Elektron in einem f-Orbital hinzu. Auch diese Elektronen befinden sich nicht in der äußersten Schale, sondern in der drittäußersten. Die chemische Ähnlichkeit in diesem Block ist daher noch stärker ausgeprägt als im d-Block.
19. Juni 2023 · The fundamental understanding of the chemistry of f-block elements enables the tuning of the physicochemical properties of molecular species and materials that contain them. Those interesting properties have led to the use of rare earths and actinides in a broad range of applications that include materials for renewable energy technologies, electronic devices, and the diagnosis and treatment ...
