Question

valence electrons that are not shared between two atoms are called ____
○ doublets
○ octets
○ electron deficient
○ lone pairs

Explanation:

Valence electrons that are not involved in sharing between two atoms are known as lone - pairs. Doublets refer to a pair of electrons with opposite spins in some contexts but not in this non - sharing sense. Octets are about atoms having 8 valence electrons for stability. Electron - deficient refers to species with fewer electrons than needed for a stable configuration.

Answer:

D. lone pairs