The inner electrons are so tightly bound that they are for all intents and purposes, immobilized when it comes to reactivity.
内部电子被紧紧地束缚着,因此无论怎样,当进行反应时,它都是固定的。
They are good electron donors because the electrons aren't tightly bound.
它们是很好的电子给体,因为电子没有被牢固地束缚。
So, that means the electrons are tightly bound.
所以那意味着这些电子是被紧紧地束缚着的。
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