the repeating subunits that are responsible for the shape of a crystal are known as unit cells. heavy…

the repeating subunits that are responsible for the shape of a crystal are known as unit cells. heavy nuclei. light electrons. amorphous cells.
Answer
Brief Explanations:
In crystallography, unit - cells are the repeating subunits that determine the shape and structure of a crystal. Heavy nuclei, light electrons, and amorphous cells are not relevant in this context. Amorphous substances do not have a regular, repeating structure like crystals.
Answer:
unit cells.