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How Many Bonds Hydrogen Forms

氢之所成键,数之几何?

氢者,于诸化合之态,常成一键。观乎水之构造,一氧二氢,氢与氧各成一键,遂得水之分子式$H_{2}O$ 。又于甲烷,碳为中心,连四氢,氢亦各成一键,成$CH_{4}$之形。

究其根本,氢之原子结构,仅有一电子于外层。依八隅体规则(虽氢仅需达二电子稳定态),为求稳定,氢倾向与他原子共用一电子对,以成共价键。故,常态之下,氢多成一键,以达相对稳定之态。



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