lone pair
A device that measures the light emitted from an object at different angles.
(biology) The outermost portion of the exoskeleton of an insect or arthropod.
simple past tense and past participle of brandle
(chemistry) A pair of electrons in the valence shell of an atom that does not participate in bonding.
酸素原子の孤立電子対により、水は極性分子になります。
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