Explain how Bohr’s model of the atom addresses the two main failures of Rutherford’s model. 

Explain how Bohr’s model of the atom addresses the two main failures of Rutherford’s model.

• Orbiting electrons experience centripetal acceleration. Therefore they continuously emit electromagnetic radiation hence would lose energy. This therefore implies that the electrons would spiral towards the nucleus and the atom ceases to exist. Yet the atom is stable Thus Rutherford model cannot explain the stability of the atom
• Since electron continuously accelerating around the nucleus, a continuous emission spectra should be emitted by the atom. However experimental observation reveals that it is atomic emission spectrum
• From Bohr’s model, electrons move around the nucleus in circular orbits. In these orbits the electron does not radiate energy. Electromagnetic radiation is emitted when the electron makes a transition between orbits
• The electron can only move in allowed orbits in which their angular momentum is equal to nh/2π

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