Is #CuCl_2# an ionic salt or covalent molecule?
Here is my reasoning.
A. Electronegativity differences
The electronegativity of
This is much less than the normal cutoff value of 1.7 for declaring a compound ionic.
It predicts only about 33 % ionic character — i.e. a polar covalent
B. Crystal structure
The crystal consists of
(From Chemistry LibreTexts)
(From Amazing Rust.com)