Atom Definition. An atom is the defining structure of an element, which cannot be broken by any chemical means. A typical atom consists of a nucleus of protons and neutrons with electrons orbiting this nucleus. However, an atom can consist of a single proton (i.e., the protium isotope of hydrogen) as a nucleus.
Mosaic art flourished in the Byzantine Empire from the 6th to the 15th centuries; that tradition was adopted by the Norman kingdom in Sicily in the 12th century, by eastern-influenced Venice, and among the Rus in Ukraine.osaic is an art form which uses small pieces of materials placed together to create a unified whole. The materials commonly used are marble or other stone, glass, pottery, mirror or foil-backed glass, or shells.
Classical Art (480 - 323 BC) was created during a golden age, from the time Athens rose to prominence and Greek expansion, right up until the death of Alexander the Great. The Classical age could be seen as a turning point in art and produced some of the most exquisite sculptures known today.ichelangelo. Western art and sculpture derived from Roman art, while in the East, Alexander the Great's conquest gave birth to Greco-Buddhist art, which has even had an influence as far as Japan all of which stem from ancient Greek art.