Question

what did Bohr atomic model fail to explain

Answer 1

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Yes, there is a failure in Bohr's “postulates” of the atom. His model of the atom was called the Bohr model. In this model electrons were seen as having circular orbits around the nucleus. There were several problems with the Bohr model of the atom, especially when applied to atoms with more than one electron.

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Answer 2

Yes, there is a failure in Bohr's“postulates” of the atom.
His model of the atom was called the Bohr model. In this model electrons were seen as having circular orbits around the nucleus.

There were several problems with the Bohr model of the atom, especially when applied to atoms with more than one electron.