These unpaired electrons are the cause for the high chemical reactivity of free radicals.

由于这些不配对电子，这些分子或原子常具有高度的化学活性。

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These unpaired electrons are the cause for the high chemical reactivity of free radicals.

由于这些不配对电子，这些分子或原子常具有高度的化学活性。

youdao