字典網>> 英漢字典>> L開頭詞條>>lanthanum的意思

lanthanum

音標['l?nθ?n?m] 讀音

漢語翻譯


n. 鑭
【化】 鑭La
【醫】 鑭(57號元素)

詞型變化：

簡寫符號:La 

英文解釋：

名詞 lanthanum:

  1. a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
    同義詞：La, atomic number 57

詳細解釋：


lan.tha.num

n.Symbol La （名詞）符號 La
A soft, silvery-white, malleable, ductile, metallic rare-earth element, obtained chiefly from monazite and bastnaesite and used in glass manufacture and with other rare earths in carbon lights for movie and television studio lighting. Atomic number 57; atomic weight 38.9; melting point 920=C; boiling point 3,4'9=C; specific gravity 5.98 to '.8'; valence 3.See table at element
鑭：一種質軟、銀白色、有延展性的、可塑性的稀有金屬，主要是從獨居石和氟碳鈰礦中提取出來，用於玻璃工業及電影或電視攝影照明的碳棒燈中。原子序數57；原子量38.9；熔點920=C；沸點3,49'=C；比重5.98到'.8'；原子價3參見 element

來源：
New Latin
現代拉丁語
from Greek lanthanein [to escape notice (from the finding of the element hidden in oxide of cerium)]
源自 希臘語 lanthanein [避開注意力（指不被從鈰氧化物元素中提取）]

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