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单词 Dihelium
释义

Dihelium

英语百科

Helium dimer

The helium dimer is a van der Waals molecule with formula He2 consisting of two helium atoms. This molecule is the largest with two atoms, and is only very weakly bound together. The bond is so weak that it will break if the molecule rotates, or vibrates too much. It can only exist at very low cryogenic temperatures.

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更新时间:2025/6/17 20:33:31