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Fuller found it in nature. It appeared in the shapes of organic compounds and metals.
VOA: special.2010.05.30
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So, this again, takes advantage of those great unique properties of transition metals, which we'll talk about in this course.
这同样也是利用了,过渡金属的独特性质，这个我们在以后的课程里也会讲到。
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And en route we discovered that we can divide the Periodic Table into metals, 75% which is about 75% of the Periodic Table.
我们发现,我们能够将元素周期表划出金属，大概占。
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Rare earths include the fifteen lanthanide metals along with yttrium and scandium.
VOA: special.2010.10.08
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All the components that make up the coffee, and all the impurities, etcetera. cadmium, heavy metals, arsenic, whatever is in your coffee.
以及所有的杂质等等，钙，重金，砷，任何在你咖啡里的东西。
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Soil naturally contains harmless amounts of lead, along with other metals.
VOA: special.2009.06.09
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It has two irons that are involved in doing the chemistry, so it includes transition metals.
反应中有两个铁原子参与,因此她还要了解过渡金属。
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The material was a mixture of the metals nickel and chromium.
VOA: special.2010.07.07
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Two massy Keys he bore of metals twain Now this is important to Milton.
他所掌有的成对锁钥,这里所讲的对弥尔顿而言非常重要。
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the ax has enlarged the borders of our settlements, and the mines, as well of iron and coal as of the precious metals, have yielded even more abundantly than heretofore.
VOA: special.2009.11.23
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I talked a lot about the exam so I don't have a lot of time left to talk about the structural metals.
我说了很多关于考试的东西,所以没多少时间,讨论结构金属。
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Heavy metals,such as lead,and products like insecticides have recently been linked to abormalities in newborns and attention deficits in toddlers.
VOA: standard.2010.08.09
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I showed you last day what happens when they form and we were able to electrolyze and make fantastic metals like magnesium.
昨天我讲过,当离子液体形成我们就可以使其电解,生成出神奇的金属，比如镁。
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They allege that the company's drilling polluted their water with chemicals,metals and methane, the main constituent of natural gas, causing explosions as well as gastrointestinal and neurological illness.
VOA: standard.2010.01.02
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So, if we're going to go to the moon, we're going to go to Mars,we want to be able to produce oxygen, structural metals and photovoltaic materials from in situ resources.
如果我们要去月球上，我们要去火星上，我们则必须要制造,氧气，结构金属和光电材料,就在原地制造。
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Customers are looking at other precious metals, like platinum.
VOA: standard.2009.10.17
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So, these are poor electron donors but also a good electron acceptors, and we call these non-metals.
所以这些元素都不易失电子,但是它们是很好的电子受体，我们把这些叫做非金属。
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I'm interested in nonaqueous electrochemistry, so molten salts and polymers, the applied research. First of all, interested in environmentally sound technologies for extraction, refining, recycling of metals.
我对非水溶剂电化学感兴趣，还有熔盐和聚合物，以及应用性研究，首先，对环保型技术提取感兴趣,如金属的提取和精炼，以及循环回收。
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And, Rutherford tried various metals.
卢瑟福尝试了不同的金属。
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- So, for example, if he was talking about the group one metals, he noticed these were all very soft reactive metals, those were grouped together.
比如，他在讨论，I，族金属，注意到它们都是质地较软的活性金属，这些被归到一类。
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And in the second half of this course, talk to us about transition metals in depth, and that's when we'll really delve into d orbitals.
在这个课程的后半部分，会深入的讲到，过渡金属，这时候，你们可以研究d轨道。
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And, this is all that was known at that time, seven metals, carbon, and sulfur.
这是当时所知道的了，7种金属，碳，和硫磺。
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And, in fact, this is the case for all the alkali metals.
事实上，所有的碱金属都有这样的性质。
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We started with just the seven metals and carbon plus sulfur, it was the point of departure for Democritus.
我们开始讲了7种金属,还有碳和硫磺，那就是Democritus的起点。
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Liquid metal. Solid metals melt and become a liquid metal like mercury.
液态金属，固态金属熔化,形成一种像水银一样的液态金属。
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It's the lightest of the structural metals.
是最轻的结构金属。
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So, my final example is from Alan Davidson's lab, and Alan is an inorganic chemist -- he loved those transition metals and they're unique properties, and he designed this compound, it's called Cardiolite, Cardiolite and it's used in heart imaging.
最后一个例子是Alan，Davidson实验室，他是个无机化学家-,他喜欢研究过渡金属,和它们的奇特性质，他设计了这种化合物，叫做。
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So, there were seven known metals at the time, and seven heavenly bodies.
所以，当时有7种已知的金属，还有7个天体。
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And, these are called semi-metals or metalloids.
这些元素被称作半金属或非金属。
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Donors are over here, the metals on the left end of the Periodic Table.
在这里，在元素周期表的左下部分的金属。
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