Atomic Structure Diagram. The diagram above of a portrait of an atom gives some idea on the structure of an atom sometimes called the bohr atomic model it also includes some important definitions and notation used to describe atomic structure. The final ring or shell of electrons contains the typical number of valence electrons for an atom of that element.
Atom nucleus the nucleus is the center of mass a but does not significantly contribute to volume. A simple view of atomic structure this page revises the simple ideas about atomic structure that you will have come across in an introductory chemistry course for example gcse. Mass 1 amu charge 1 neutrons.
The negatively charged particles called electrons revolve around the center of the nucleus.
The element atomic number and name are listed in the upper left. Mass 1 amu charge 1 neutrons. The atomic model in the diagram below shows protons and neutrons concentrated at the atomic nucleus and electrons in the orbits surrounding it. The following diagram summarizes the basic facts of the structure of the atom.
