Why was the Bohr model of the atom not useful for atoms other than hydrogen?

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Syed Aquib Ur Rahman | Contributor-Level 10

5 months ago

Bohr's model is too simple for atoms beyond hydrogen. In multi-electron atoms like helium, it fails because it ignores a couple of aspects. First is the electron-to-electron repulsion, and second is the shielding effect, where inner electrons reduce the nuclear pull on outer ones. Due to both, orbit

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