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Methods and recent development of isolation of structurally characterizable alkali, alkaline earth and lanthanide metal ketyl radical complexes were reviewed in the paper.

介绍了利用金属子的配位作用捕获并有机反应中间体——自由基中间体的研究方法和最新进展。

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学院:生物化学

Let me write this out, alkaline earth metals.

让我写出来,碱

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The first two columns on the left are your alkali metals, and your alkaline earth metals.

左边的前两列是碱

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学院:生物化学

If we move one over to the right this group two right over here, these are called the alkaline earth metals.

如果我们把一个移到右边,这两个就在这里,它们被称为碱

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Next, you have the alkaline earth metals - reactive metals, but not as reactive as the alkali metals, forming cations with two positive charges instead of just one.

接下来,你有碱 - 活泼, 但不像碱那样活泼,形成带有两个正电荷而不是一个正电荷的阳离子。

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