NIELS BOHR’S ATOMIC THEOR

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9 Terms

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Hydrogen Atom

In 1913, Bohr proposed a theory for ___

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Atoms

can absorb and emit energy via promotion of electrons to higher energy levels and relaxation to lower levels

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Electrons

are found in allowed energy levels (quantized energy levels, or orbits)

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Emission spectrum

light emitted when a substance is excited by an energy source an increase in temperature or heating the atom (increasing the kinetic energy

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Spectral lines

are a result of electron transitions between allowed levels in the atoms

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Subshells

(s,p,d,f) was observed in Niels Bohr’s experiment

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Quantization of Energy

electrons exist in fixed energy levels surrounding the nucleus

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Excited State

promotion of electron occurs as it absorbs energy

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Relaxation

energy is released as the electron travels back to lower levels