英文字典中文字典Word104.com



中文字典辭典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z   







請輸入英文單字,中文詞皆可:

lanthanum    音標拼音: [l'ænθənəm]
n. 鑭



lanthanum
n 1: a white soft metallic element that tarnishes readily;
occurs in rare earth minerals and is usually classified as
a rare earth [synonym: {lanthanum}, {La}, {atomic number 57}]

Lanthanum \Lan"tha*num\ (l[a^]n"th[.a]*n[u^]m), n. [NL., fr. Gr.
lanqa`nein to lie hid, to be concealed.] (Chem.)
A rare element of the rare earth group of the metals, of
atomic number 57, allied to aluminum. It occurs in certain
rare minerals, as cerite, gadolinite, orthite, etc., and was
so named from the difficulty of separating it from cerium,
didymium, and other rare earth elements with which it is
usually associated. Atomic weight 138.9. Symbol La. [Formerly
written also {lanthanium}.]
[1913 Webster]

請選擇你想看的字典辭典:
單詞字典翻譯
Lanthanum查看 Lanthanum 在Google字典中的解釋Google英翻中〔查看〕
Lanthanum查看 Lanthanum 在Yahoo字典中的解釋Yahoo英翻中〔查看〕





安裝中文字典英文字典查詢工具!


中文字典英文字典工具:
選擇顏色:
輸入中英文單字

































































英文字典中文字典相關資料:
  • Lanthanum - Wikipedia
    It is a soft, ductile, silvery-white metal that tarnishes slowly when exposed to air It is the first and the prototype of the lanthanide series, a group of 15 similar elements between lanthanum and lutetium in the periodic table Lanthanum is traditionally counted among the rare earth elements
  • Lanthanum | Rare Earth Element, Uses in Technology, Medicine | Britannica
    lanthanum (La), chemical element, a rare-earth metal of Group 3 of the periodic table, that is the prototype of the lanthanide series of elements Lanthanum is a ductile and malleable silvery white metal that is soft enough to be cut with a knife
  • Lanthanum Facts, Symbol, Discovery, Properties, Uses
    Lanthanum (pronunciation: LAN-the-nem) [3] is a soft, silvery rare-earth metal belonging to the lanthanoids family and represented by the chemical symbol La [1, 2]
  • Lanthanum - Element information, properties and uses | Periodic Table
    Lanthanum is an important component of mischmetal alloy (about 20%) The best-known use for this alloy is in ‘flints’ for cigarette lighters ‘Rare earth’ compounds containing lanthanum are used extensively in carbon lighting applications, such as studio lighting and cinema projection
  • Lanthanum Facts – Atomic Number 57 or Symbol La
    Lanthanum is a soft, silvery-white metallic element with the symbol La and atomic number 57 It is the first element in the lanthanide series and is a rare earth element Lanthanum has significant applications in modern technology, ranging from catalysis to advanced optical materials
  • Lanthanum: Properties and Applications - Stanford Materials
    Lanthanum, a silvery-white rare earth metal, plays a crucial role in various modern technological advancements Its unique properties and applications make it indispensable in numerous industries This article delves into the properties of lanthanum and explores its diverse applications
  • Comprehensive Guide to Lanthanum: Uses, Properties, and Applications
    Lanthanum is a chemical element with the symbol "La" and atomic number 57 It belongs to the lanthanide series and is classified as a rare-earth element Lanthanum is generally known for its use in high-tech applications like flat-panel displays and hybrid vehicle batteries
  • Rare Earth Elements - Purdue University
    Lanthanum (La) is a soft silvery white coloured metal that has the atomic number 57 in the periodic table It is a Lanthanide metal Lanthanum is classed as a rare earth metal much like Yttrium It was discovered by Carl Mosander in 1839 in the mineral cerite
  • Periodic Table of Elements: Los Alamos National Laboratory
    Lanthanum is silvery white, malleable, ductile, and soft enough to be cut with a knife It is one of the most reactive of the rare-earth metals It oxidizes rapidly when exposed to air Cold water attacks lanthanum slowly, while hot water attacks it much more rapidly
  • Lanthanide - Wikipedia
    The term derives from lanthanum, first discovered in 1838, at that time a so-called new rare-earth element "lying hidden" or "escaping notice" in a cerium mineral, [11] and it is an irony that lanthanum was later identified as the first in an entire series of chemically similar elements and gave its name to the whole series





中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典