Different materials with different properties are suited to different uses.
The ability to image and manipulate placement of individual atoms in tiny structures allows for the design of new types of materials with particular desired functionality (e.g., plastics, nanoparticles). Different kinds of matter exist (e.g., wood, metal, water), and many of them can be either solid or liquid, depending on temperature.
The arrangement and motion of atoms vary in characteristic ways, depending on the substance and its current state (e.g., solid, liquid).
Chemical composition, temperature, and pressure affect such arrangements and motions of atoms, as well as the ways in which they interact.
Moreover, the table’s patterns are now recognized as related to the atom’s outermost electron patterns, which play an important role in explaining chemical reactivity and bond formation, and the periodic table continues to be a useful way to organize this information.