Oppositely charged objects attract each other. This attraction holds electrons in atoms and holds atoms to one another in many compounds However, Emest Rutherford's model of the atom failed to explain why electrons were not pulled into the atomic nucleus by this attraction. What change to the atomic model helped solve the problem seen in Rutherford's model? Bohr's work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder. Bohr's work with cathode rays led him to say that the electrons were located within the mass of positive material, like plums in a pudding Thomson's work with cathode rays led him to say that the electrons were located within the mass of positive material, like plums in a pudding Thomson's work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder.

Question

Oppositely charged objects attract each other. This attraction holds electrons in atoms and holds atoms to one another in many compounds However, Emest Rutherford's model of the atom failed to explain why electrons were not pulled into the atomic nucleus by this attraction. What change to the atomic model helped solve the problem seen in Rutherford's model? Bohr's work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder. Bohr's work with cathode rays led him to say that the electrons were located within the mass of positive material, like plums in a pudding Thomson's work with cathode rays led him to say that the electrons were located within the mass of positive material, like plums in a pudding Thomson's work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder.

Answer 1

Bohr's work with atomic spectra led him to say that the electrons were limited to existing in certain energy levels, like standing on the rungs of a ladder.

Answer 2

## Step 1The problem is about the atomic model proposed by Ernest Rutherford. According to Rutherford's model, electrons were not pulled into the atomic nucleus by the attraction between oppositely charged objects. This was a significant issue because it contradicted the basic principles of physics.## Step 2The problem with Rutherford's model was that it did not explain why electrons did not fall into the nucleus due to the attraction between oppositely charged objects. This was a significant issue because it contradicted the basic principles of physics.## Step 3The change to the atomic model that helped solve this problem was proposed by Niels Bohr. Bohr's model proposed that electrons exist in certain energy levels, similar to standing on the rungs of a ladder. This model explained why electrons do not fall into the nucleus, as they are confined to these energy levels.

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