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单词 Homonuclear diatomic molecule
释义

Homonuclear diatomic molecule

英语百科

Diatomic molecule

A space-filling model of the diatomic molecule dinitrogen, N2
A periodic table showing the elements that exist as homonuclear diatomic molecules under typical laboratory conditions.

Diatomic molecules are molecules composed of only two atoms, of either the same or different chemical elements. The prefix di- is of Greek origin, meaning "two". If a diatomic molecule consists of two atoms of the same element, such as hydrogen (H2) or oxygen (O2), then it is said to be homonuclear. Otherwise, if a diatomic molecule consists of two different atoms, such as carbon monoxide (CO) or nitric oxide (NO), the molecule is said to be heteronuclear.

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