Last Updated：2025/11/20

(chemistry) A pair of electrons in the valence shell of an atom that does not participate in bonding.

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lone pair

Source Word

lone pair

Noun

(chemistry) A pair of electrons in the valence shell of an atom that does not participate in bonding.

Japanese Meaning

孤立電子対

The lone pair on the oxygen atom makes water a polar molecule.

酸素原子の孤立電子対により、水は極性分子になります。

Sense（1）

(chemistry) A pair of electrons in the valence shell of an atom that does not participate in bonding.

lone pairs

（ plural ）