Molecule vs. Crystal Molecule Crystal Two or more elements joined together with one or more chemical bonds. Is composed of atoms of elements. Can be solid, liquid or gas. A solid material that may be composed of atoms, ions, and/or molecules that are arranged in a highly ordered and well-defined microscopic structure known as a crystal lattice. Is solid. According to the table, these four models all represent molecules. Some are very simple; others more complex. Which molecule contains the most chemical bonds? A) A B) B C) C D) D