A nonpolar covalent bond (i.e., pure covalent)would form in which one of the following pairs of atoms?
A)Na - Cl
B)H - Cl
C)Li - Br
D)Se - Br
E)Br - Br

Question

Quizplus · Accepted Answer

The only pair of atoms that would form a nonpolar covalent bond is the pair in option E (Br-Br). Nonpolar covalent bonds form when the two atoms have the same or similar electronegativities, meaning the electrons are shared equally between them. In all other options, the atoms have different electronegativities and would form polar covalent bonds, where electrons are not shared equally.

A Nonpolar Covalent Bond (I