How was bohr´s atomic model different from those of previous scientists

Explanation:

Neils Bohr in 1913 put forward his own model of the atoms based on the quantum mechanics originally developed by Planck.

He assumed the Rutherford's model and suggested that the extranuclear space consists of electrons in specific spherical orbitals around the nucleus. His predecessors and contemporaries did not give this perspective to the atomic model. The orbits/energy levels are designated by letters K, L, M, N The maximum number of electrons that can be accommodated by an energy level is 2n² where n is the principal energy level.

Gallium melts near room temperature and has one of the largest  liquid  ranges of any metal, so it has found use in high temperature thermometers.