超ちょう原げん子し価か

noun

hypervalent compound

Chemistry term for a compound in which a central atom has more than eight electrons in its valence shell.

• 超ちょう原げん子し価か化か合ごう物ぶつは、中ちゅう心しん原げん子しがオクテット則そくを超こえる結けつ合ごうを持もつ。

  Hypervalent compounds have bonds where the central atom exceeds the octet rule.