covalence是什么意思 covalence的读音、翻译、用法

covalence是什么意思 covalence的读音、翻译、用法

covalence不是某个国家的语言,而是化学术语中的概念,指两个原子间共享电子对的能力。中文可以翻译为“共价度”。在化学中,共价度描述了原子间化学键的强度和类型,是理解分子结构和反应机理的基础。以下是含有covalence的9个例句:

1. The covalence of the bond between two hydrogen atoms is very high.(两个氢原子之间的化学键共价度很高。)

2. Oxygen has a higher covalence than nitrogen.(氧的共价度比氮高。)

3. The covalence of a double bond is stronger than that of a single bond.(双键的共价度比单键强。)

4. The covalence of a polar covalent bond is intermediate between that of a pure covalent bond and that of an ionic bond.(极性共价键的共价度介于纯共价键和离子键之间。)

5. The covalence of silicon is four.(硅的共价度为四。)

6. The covalence of a metal bond is weak.(金属键的共价度很弱。)

7. The covalence of a pi bond is weaker than that of a sigma bond.(π键的共价度比σ键弱。)

8. The covalence of carbon in methane is four.(甲烷中碳的共价度为四。)

9. The covalence of a bond decreases as the bond length increases.(化学键长度增加时,其共价度会降低。)



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