未成对电子

另一方面DNA分子具有双螺旋结构，其对称性较低，分子中存在大量的悬挂键，这些悬挂键上的未成对电子也会进入π&电子系统。

On the other hand , the double helix DNA molecule with low symmetry has a lot of hanging bonds , and the unpaired electrons of these hanging bonds may come into the π - electrons system .

今天的最后，你有些未成对电子。

At the end of the day you have some unpaired electrons .

自1968年发现超氧化物歧化酶（SOD）以后，自由基&这一带有未成对电子的分子在人体的疲劳、衰老、生物合成等方面的作用机理不断地被揭示着。

Since SOD was discovered in 1968 , the mechanism of free radical - molecule with non-paired electrons has been revealed in human fatigue , aging and biosynthesis endlessly .

凡是具有未成对电子的原子、分子或原子团都称为自由基，在体内分布广泛。

All unpaired atom , molecule and atomic group are called free radicals , which exist in body widely .

它们的未成对电子使原子成为小型的永磁体，它们沿外磁场排列，并因此增强外磁场。

Their unpaired electrons make the atoms behave like tiny permanent magnets that align with and strengthen an applied magnetic field .

因为它们都是未成对的，我们已经发现，在Stern-Gerlach实验中，未成对电子扮演怎样一个角色了。

Because these things are unpaired , we have already seen how unpaired electrons play a role in the Stern-Gerlach experiment .