Although the transfer of four electrons and four protons reduces oxygen to water, which is harmless, transfer of one or two electrons produces superoxide or peroxide anions, which are dangerously reactive.
一个中性氦原子具有两个电子。
A neutral helium atom has two electrons.
两个电子不能处于相同的量子态。
Two electrons cannot be in the same quantum state.
一个中性氦原子具有两个电子。
A neutral helium atom is going to have two electrons.
四面体形成一个单位,其中两个电子可以自由移动。
The tetrahedra form a unit in which two electrons can move freely.
硫要便宜很多,并且每个硫原子能固定两个电子。
Sulfur is much cheaper, and each sulfur atom can hold two electrons.
含有两个质子,通常有两个中子和两个电子;.
Consists of two protons, and usually two neutrons and two electrons;
氦原子有两个电子,这两个电子的轨道也在第一层电子层。
A helium atom has two electrons, both of which are in its 1 s orbital.
另一种味道是三重态,其中两个电子未配对。
The other flavor is triplet, where two electrons are unpaired.
一些放射性核会瞬间衰变,释放出两个电子和两个中微子。
Some radioactive nuclei simultaneously decay, releasing two electrons and two neutrinos.
这个原理指出任何两个电子无法同时存在于同一个量子状态。
This principle states that no two electrons could exist in the same quantum state.
如果将两个电子放在一起,二者会相互排斥,努力飞离对方。
If you put two electrons together, they try to fly apart.
由于只有两个旋转量子数值,因此一个轨道不能容纳多于两个电子。
Because there are only two possible values of s, an orbital can hold not more than two electrons.
Pauli的排它原则指出,不可能有两个电子,具有完全相同的四个量子数。
The Pauli exclusion principle states that no two electrons can have the same four quantum numbers.
研究人员研究了所谓的单线态裂变(SF)机制,即一个光子激发两个电子。
The researchers investigated the so-called singlet fission(SF) mechanism, in which one photon excites two electrons.
当Q接受两个电子和两个质子时,它被还原为“泛酚”形式(QH2);.
When Q accepts two electrons and two protons, it becomes reduced to the ubiquinol form(QH2);
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