The Rutherford-Bohr atomic model assumes that the atom is composed of positive charges (protons) located inside the nucleus and an electrosphere.
The Rutherford-Bohr model (1908/1910) compared the atom to the planetary system, since electrons circle the nucleus in fixed energy orbits, not emitting energy spontaneously.
Although most of the mass of the atom is found in the nucleus, it is the electrosphere that constitutes most of the volume of the atom, being composed of negative charges (electrons) that orbit in a circular way around the atomic nucleus. The model also postulates that the energy variation of the atom, in relation to losses and gains, only occurs in amounts equal to an integer multiple.
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