Question

How are the Bohr model and the quantum mechanical model of the hydrogen atom similar? How are they

different?

Short answer

Both of these advocated the presence of a positively charged nucleus and electrons moving around it. Bohr model, however, projected the particle form of an electron with a well-defined path whereas the quantum mechanical model projected the waveform of an electron with no trajectory. The Quantum mechanical model obeys the Heisenberg uncertainty principle whereas the Bohr model does not

Step-by-step solution

highlighting the similarities between the Bohr model and the quantum mechanical model of the hydrogen atom  

Some similarities between the Bohr model and the quantum mechanical model are as follows

• Bohr and quantum mechanical models both consisted of a positively charged nucleus.
• In both of these models, electrons are moving around the nucleus by coulombic electrostatic potential.

determining the differences between the Bohr model and the quantum mechanical model of the hydrogen atom  

Some differences between the Bohr model and the quantum mechanical model of the hydrogen atom are

• In the Bohr model, the electron was projected as a particle, while it was projected as a wavein the quantum mechanical model.
• In the Bohr model, the electron path was well defined whereas thequantum mechanical model didn’t define any path for the electrons.
• Quantum mechanical model obeys the Heisenberg uncertainty principle. Whereas the Bohr model does not.