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.
Greek sculptures are mainly divided into 7 time periods-Mycenaean Art, Sub-Mycenaean or Dark Age, Proto-Geometric, Geometric Art, Archaic, Classical and Hellenistic. Mycenaean art is the first era in which we find surviving examples of Greek art. This era dates from around 1550 BC to 1200 BC on the Greek mainland.During this period there were two separate civilisations living on the mainland, the Greeks and the Mycenaeans.reek sculptures are mainly divided into 7 time periods-Mycenaean Art, Sub-Mycenaean or Dark Age, Proto-Geometric, Geometric Art, Archaic, Classical and Hellenistic. Mycenaean art is the first era in which we find surviving examples of Greek art. This era dates from around 1550 BC to 1200 BC on the Greek mainland.