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单词 Octet rule
释义

Octet rule

原声例句
Crash Course 综合篇

And yes, those 8 electrons are the reason for whole the octet rule thing.

是的,这 8 个电子是整个八位组规则的原因。

Scishow 精选系列

See, Oxygen is a needy little element, it's one of those elements that follows the octet rule, it wants to have eight electrons in its outer-most shell.

看,氧是一种需要别的物质的小元素,它是遵循八隅体规则的元素之一,它希望在其最外层有八个电子。

中文百科

八隅体规则

八隅体规则(或称八电子规则)是化学中一个简单的规则,即原子间的组合趋向令各电子的价层都拥有八个电子,与惰性气体拥有相同的电子排列。主族元素,如碳、氮、氧、卤素族、钠、镁都依从这个规则。简单而言,当组成离子或分子的组成原子的最外电子层有八个电子,它们便会趋向稳定,而若不满8个时,原子间会互相共享或交换电子达到平衡稳定。例如Cl与Na形成NaCl的结构。

第一层电子最多有2个,第二层8个,第三层18个,第四层32个。公式为2n。

英语百科

Octet rule 八隅体规则

Comparison of the electronic structure of the three-electron bond to the conventional covalent bond.
CO2, con dos enlaces dobles.

The octet rule is a chemical rule of thumb that reflects observation that atoms of main-group elements tend to combine in such a way that each atom has eight electrons in its valence shell, giving it the same electronic configuration as a noble gas. The rule is especially applicable to carbon, nitrogen, oxygen, and the halogens, but also to metals such as sodium or magnesium.

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更新时间:2025/6/18 18:49:15