Question detail
Explain how Niels Bohr modified Rutherford’s nuclear model of the atom.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Atoms and isotopes
Question
Explain how Niels Bohr modified Rutherford’s nuclear model of the atom.
Answer
Bohr proposed that electrons occupy only certain fixed orbits or energy levels around the nucleus, and that they can move between these levels by absorbing or emitting discrete amounts of energy. This idea explained why atoms emit light in specific colours and resolved the instability predicted by Rutherford’s model.
Explanation
The answer demonstrates understanding of Bohr’s contribution to the nuclear model, linking the concept of quantised orbits to observable spectral lines. It tests recall of Bohr’s key idea and application to atomic stability.
Common mistake
Misunderstanding Electron Orbits
Students often think that electrons orbit the nucleus in fixed paths like planets around the sun.
Emphasize that electrons exist in probabilistic orbitals, representing regions where they are likely to be found, rather than fixed orbits.
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