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1. Contraction des lanthanides: La contraction des lanthanides ou contraction lanthanidique désigne, en chimie, le fait que le rayon ionique des lanthanides décroît significativement lorsque le numéro atomique augmente, pour les atomes non chargés ou des ions possédant la même charge. Ce phénomène, découvert ... [100%] 2024-08-28

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1. Lanthanide: The lanthanide (/ˈlænθənaɪd/) or lanthanoid (/ˈlænθənɔɪd/) series of chemical elements comprises at least the 14 metallic chemical elements with atomic numbers 57–70, from lanthanum through ytterbium. In the periodic table, they fill the 4f orbitals. (Trivalent metallic rare-earth elements) [97%] 2024-01-26 [Periodic table] [Lanthanides]...
2. Lanthanide: The lanthanide (/ˈlænθənaɪd/) or lanthanoid (/ˈlænθənɔɪd/) series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through lutetium. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known ... (Chemistry) [97%] 2023-11-06 [Periodic table] [Lanthanides]...
3. Lanthanide: The lanthanide (/ˈlænθənaɪd/) or lanthanoid (/ˈlænθənɔɪd/) series of chemical elements comprises the 15 metallic chemical elements with atomic numbers 57–71, from lanthanum through lutetium. These elements, along with the chemically similar elements scandium and yttrium, are often collectively known ... (Trivalent metallic rare-earth elements) [97%] 2021-12-23 [Periodic table] [Lanthanides]...
4. Lanthanide contraction: The lanthanide contraction is the greater-than-expected decrease in atomic radii/ionic radii of the elements in the lanthanide series from atomic number 57, lanthanum, to 71, lutetium, which results in smaller than otherwise expected atomic radii/ionic radii ... (Chemistry) [69%] 2023-09-25 [Chemical bonding] [Lanthanides]...
5. Lanthanide compounds: Lanthanide compounds are compounds formed by the 15 elements classed as lanthanides. The lanthanides are generally trivalent, although some, such as cerium and europium, are capable of forming compounds in other oxidation states. (Chemical compounds containing a lanthanide element) [69%] 2024-08-03 [Lanthanide compounds]
6. Lanthanide probes: Lanthanide probes are a non-invasive analytical tool commonly used for biological and chemical applications. Lanthanides are metal ions which have their 4f energy level filled and generally refer to elements cerium to lutetium in the periodic table. (Non-invasive analytical tool) [69%] 2025-05-08 [Analytical chemistry] [Biological techniques and tools]...