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lanthanide    
n. 原子序数58,81间的稀土元素

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  • Lanthanide - Wikipedia
    All lanthanide elements form trivalent cations, Ln 3+, whose chemistry is largely determined by the ionic radius, which decreases steadily from lanthanum (La) to lutetium (Lu) Several lanthanides can also form +2 and even +4 oxidation states
  • Lanthanide | Definition, Start, Facts | Britannica
    Lanthanide, any of the series of 15 consecutive chemical elements in the periodic table from lanthanum to lutetium (atomic numbers 57–71) With scandium and yttrium, they make up the rare-earth metals
  • Lanthanides Facts (Lanthanoids) - Science Notes and Projects
    Chemists refer to these 15 elements using the symbol Ln They are called “lanthanides” because they share properties in common with lanthanum Here is a list of the lanthanides, a look at their common properties, their uses, and other facts
  • Lanthanides: Properties and Reactions - Chemistry LibreTexts
    The Lanthanide Contraction refers to the decrease in atomic size of the elements in which electrons fill the f-subshell Since the f sub-shell is not shielded, the atomic size will decrease as the nuclear charge still increases
  • Lanthanide Metals: Definition, Properties, Uses, and Types
    Lanthanides are a group of metals that have similar properties Their characteristics have become critical to a surprising range of high-tech applications Much of the commonality stems from the lanthanide elements’ common electron configurations, resulting in shared chemical behaviors
  • Lanthanides - Chemistry Learner
    There are a total of 15 lanthanides in the periodic table Lanthanides have similar properties to one another and display several physical, chemical, and magnetic features
  • Lanthanide - Simple English Wikipedia, the free encyclopedia
    Lanthanides, with Scandium and Yttrium, are called rare earth elements All the lanthanoids are silvery white soft metals and tarnish rapidly in air The hardness increases with increasing atomic number Lanthanides are not abundant, and only small amounts are mined
  • LANTHANIDE Definition Meaning - Merriam-Webster
    The meaning of LANTHANIDE is any of the series of elements with increasing atomic numbers that begins with lanthanum or cerium and ends with lutetium
  • 6. 14: Lanthanides and Actinides - Chemistry LibreTexts
    The main lanthanide used for this purpose is cerium, mixed with small amounts of lanthanum, neodymium, and praseodymium These metals are also widely used in the petroleum industry for refining crude oil into gasoline products
  • Lanthanide compounds - Wikipedia
    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





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