And I cannot have an unpaired electron in the same orbital.
我不可能在同一个轨道，得到不成对电子。
An atom or a group of atoms with at least one unpaired electron.
原子因，基团，至少有一个游离电子的原子或一组原子。
A free radical is a molecular fragment having an unpaired electron.
自由基是一种具有未配对电子的分子碎体。
So we can bring in four hydrogen atoms, which will each contribute another unpaired electron.
我们可以引入4个氢原子，每个贡献一个未配对的电子。
S — we don't have to hybridize it, it already has only one unpaired electron in a 1 s orbital.
s -我们不用杂化它，它已经有而且仅有一个未配对电子在s轨道里。
Literally, a radical is a molecule that reacts easily with other chemicals because of an unpaired electron.
精确地说，因为有孤电子，所以分子中的基团与其他化学物质反应更加容易。
When the atom absorbs energy from light, one electron may move to a higher energy orbit, leaving an unpaired electron.
当原子从光吸收能量，一个电子可移动到一个更高的能量轨道，留下一个未成对电子。
So, electron promotion does not happen in terms of nitrogen, because it would not increased our number of unpaired electrons.
这里对于氮原子不会有电子激发，因为这不会增加，未配对电子的数目。
According to the classification of free radicals, the Character of the molecular orbital occupied by the unpaired electron was presented.
提出按未完成对电子占据的分子轨道特性对自由基系统进行分类。
And what I want to point out that we just figured out for molecular orbital theory, is that o 2 is a biradical, because remember, the definition of a radical is when we have an unpaired electron.
我要指出的是，我们刚利用分子轨道理论，指导了O2是二价自由基，因为记住，自由基的定义是，有个未配对的电子。
And what I want to point out that we just figured out for molecular orbital theory, is that o 2 is a biradical, because remember, the definition of a radical is when we have an unpaired electron.
我要指出的是，我们刚利用分子轨道理论，指导了O2是二价自由基，因为记住，自由基的定义是，有个未配对的电子。
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