Question

The geometric form of crystals is the result of the orderly arrangement of _____.

• A. Molecules only
• B. ions only
• C. Atoms only
• D. Any of the above

Answer 1

The correct option is D

Any of the above

Diamond is the orderly arrangement of C atoms. NaCl is orderly arrangement of $N{a}^{+}$ and $C{l}^{-}$ ions. Ice is orderly arrangements of $H_{2}O$ molecules.
Thus, atoms, molecules, and ions can make-up crystals.