Explain the energy of the electron in the isolated hydrogen

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Which of the following experimental observations best justifies Bohr's assertion that the energy of the electron in the isolated Hydrogen atom is restricted to certain allowed values (quantized)?

a. the discrete spectrum of Hydrogen

b.the schrodinger Wave equation

c.Electron diffraction

d.The photoelectron effect

e. the Pauli exclusion principle

not sure which actually proved it and can you explain why

Reference no: EM13501974

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