二价是一个汉语词语，拼音是èr jià，意思是不同的价格。
双语例句原声例句
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因为铝离子为正三价,氧为负二价。
Because aluminum ions have charge of plus three and oxygen ions have charge of minus two.
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我们这里是不二价的。
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对不起，不二价。
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I can then subsequently lose an electron from the lithium ion. Lithium ion loses an electron to become lithium 2plus.
然后我能在锂离子中，失去一个电子,锂离子失去一个电子,变为二价锂离子。
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And, likewise, if we look at fluorine in its diatomic molecule, it is 160 kilojoules per mole.
一样的，如果我们观察二价的氟，它是每摩尔160焦。
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So, selenium 2 minus is what's going to be isoelectronic, because if you add two electrons to selenium, you'll get the same electron configuration that you have for krypton here.
负二价的硒离子将是等电子的，因为如果你给硒原子加上两个电子，你会得到,和氪原子相同的电子排布。
应用推荐
$firstVoiceSent
- 来自原声例句