Pasangan elektron sunyi

Pasangan sunyi (ditampilkan sebagai pasangan noktah) dalam struktur Lewis hidroksida

Dalam kimia, pasangan elektron sunyi atau disebut juga pasangan sunyi (bahasa Inggris: lone pair) mengacu pada sepasang elektron valensi yang tidak dibagi dengan atom lain[1] dan kadang-kadang disebut pasangan non-ikatan. Pasangan sunyi ditemukan di kelopak elektron terluar suatu atom. Mereka dapat diidentifikasi dengan menggunakan struktur Lewis. Pasangan elektron dianggap pasangan sunyi jika dua elektron berpasangan tetapi tidak digunakan dalam ikatan kimia. Dengan demikian, jumlah pasangan elektron sunyi ditambah jumlah elektron ikatan sama dengan jumlah elektron valensi di sekitar atom.

Referensi

  1. ^ IUPAC Gold Book definition: lone (electron) pair
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