The most obvious piece of equipment a receptionist uses is a telephone, but there is a lot of variety in types and styles, from phone systems with a few lines to switchboards with multiple lines.
Modern Atomic Theory Bohr's model of the atom is important because it introduced the concept of the quantum in explaining atomic properties. However, Bohr's model ultimately needed revision becuase it failed to explain the natue of atoms more complicated than hydrogen.rwin Schrodinger developed the equation which is used today to understand atoms and molecules-the Schrodinger Equation (1926) Erwin Schrodinger took the ideas developed by de Broglie, Heisenberg and others and put them together in a single equation that is named after him.
This atomic model is known as the quantum mechanical model of the atom. Unlike the Bohr model, the quantum mechanical model does not define the exact path of an electron, but rather, predicts the odds of the location of the electron.This model can be portrayed as a nucleus surrounded by an electron cloud.n 1926 Erwin Schroedinger, schrÃ¶dinger An austrian, physicist took The bohr atom model one step. Further schroedinger schrÃ¶dinger used mathematical equations to describe the likelihood of finding an electron in a. Certain position this atomic model is known as the quantum mechanical model of. the atom