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单词 europium
释义

europium /jʊ(ə)r'əʊpɪəm//jʊˈropiəm/

英汉-汉英词典
n. 铕(63号化学元素)
词组 | 习惯用语
您要查找的是不是:
  • European adj. 欧洲的;欧洲人的 n. 欧洲人
  • Europe n. 欧洲
europium oxide [无化] 氧化铕

网络短语:
europium isotope 铕同位素
Europium oxid 氧化铕; 供应氧化铕;
Europium telluride 碲化铕
Europium iodide 碘化铕
europium complexes 铕配合物
europium hydride 氢化铕
europium oxysulphide 氧硫化铕
europium chelates 铕螯合物
europium complex 铕配合物
原声例句
趣味化学实验:Periodic Videos

Ok, so europium is pretty much in the middle of the lanthanide series.

好的, 因此铕几乎位于镧系元素的中间。

中文百科

约300克纯度为99.998%的纯铕枝晶
氧化铕,涂有黄色的碳酸铕(II)

Europium)是一种化学元素,符号为Eu,原子序为63。元素以欧洲(Europe)命名。铕是一种较坚硬的银白色金属,在空气和水中容易氧化。它属于典型的镧系元素,氧化态通常为+3,但其+2态也并不鲜见。所有氧化态为+2的铕化合物都具有轻微的还原性。铕在生物体中没有重要的功用,和其他重金属相比毒性较低。铕的大部份应用都采用了其化合物的磷光特性,例如电视机的磷光体以及欧罗纸币的防伪磷光体等。

英语百科

Europium 铕

About 300 g of dendritic sublimated 99.998% pure europium handled in a glove box
Oxidized europium, coated with yellow europium(II) carbonate
Monazite

Europium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water. Being a typical member of the lanthanide series, europium usually assumes the oxidation state +3, but the oxidation state +2 is also common: all europium compounds with oxidation state +2 are slightly reducing. Europium has no significant biological role and is relatively non-toxic compared to other heavy metals. Most applications of europium exploit the phosphorescence of europium compounds. Europium is one of the least abundant elements in the universe; only about 5×10% of all matter in the universe is europium.

近义、反义、联想词
近义词
n.
metallic element, metal

联想词
boron硼;oxide氧化物;oxides氧化物;cobalt钴;manganese锰;isotopes核素;sulfide硫化物;isotope同位素;cadmium镉;ligand配合基;iodine碘;
英英词典
europium n.
  1. a bivalent and trivalent metallic element of the rare earth group

  2. synonymous: Eu, atomic number 63
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更新时间:2025/6/23 0:43:04