Concept explainers
(a)
Interpretation:
The cathode rays pass through metal foils. This property of cathode rays supports the particle nature or wave nature has to be explained.
(b)
Interpretation:
The cathode rays travel at speeds slower than that of light. This property of cathode rays supports the particle nature or wave nature has to be explained.
(c)
Interpretation:
If an object is placed in their path, the cathode rays cast a shadow. This property of cathode rays supports the particle nature or wave nature has to be explained.
(d)
Interpretation:
Their path is deflected when they are passed between electrically charged plates. This property of cathode rays supports the particle nature or wave nature has to be explained.
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Chemical Principles: The Quest for Insight
- Characterize the Bohr model of the atom. In the Bohr model, what do we mean when we say something is quantized? How does the Bohr model of the hydrogen atom explain the hydrogen emission spectrum? Why is the Bohr model fundamentally incorrect?arrow_forwardHow does Daltons atomic theory account for the Law of Conservation of Mass?arrow_forwardWhat is meant by anuclear atom? Describe the points of Ruth erford’s model for the nuclear atom and how he tested this model. Based on his experiments, how did Rutherford envision the structure of the atom? How did Rutherford’s model of the atom’s structure differ from Kelvin’s “plum pudding” model?arrow_forward
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- Classify the following as metals, nonmetals, or metalloids: a.argon b.element 3 c.Ge d.boron e.Pmarrow_forwardHow does probability fit into the description of the atom?arrow_forwardHow can we account for the fact that most of the alpha particles in the Rutherford scattering experiment passed directly through a solid sheet of gold?arrow_forward
- Planck originated the idea that energies can be quantized. What does the term quantized mean? What was Planck trying to explain when he was led to the concept of quantization of energy? Give the formula he arrived at and explain each of the terms in the formula.arrow_forwardWhat refinements had to be made in Daltons atomic theory to account for Gay-Lussacs results on the combining volumes of gases?arrow_forward
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