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2 answers

An atom is the smallest piece of an element.
A compound could be a unit cell if it is ionic, or a molecule if it is covalent.

2007-10-25 11:33:15 · answer #1 · answered by science teacher 7 · 0 0

The basic structural unit is the molecule or the ion pair.

2007-10-25 18:36:16 · answer #2 · answered by steve_geo1 7 · 1 0

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