Directions: Use the clues to fill in the words. Words can go across or down. Letters are shared when the words intersect. ACROSS 2. Rutherford discovered that electrons orbit this atomic structure 5. Rutherford used flattened sheets of 6. The scientist that discovered the nucleus was very small and the atom is mostly empty space to perform this experiment DOWN 1. A term used to describe atoms of the same element with different atomic masses 3. The cathode ray experiments lead to the discovery of this particle 4. This scientist developed a model that shows electrons in a specific, fixed orbit

Directions: Use the clues to fill in the words. Words can go across or down. Letters are shared when the words intersect. ACROSS 2. Rutherford discovered that electrons orbit this atomic structure 5. Rutherford used flattened sheets of 6. The scientist that discovered the nucleus was very small and the atom is mostly empty space to perform this experiment DOWN 1. A term used to describe atoms of the same element with different atomic masses 3. The cathode ray experiments lead to the discovery of this particle 4. This scientist developed a model that shows electrons in a specific, fixed orbit

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter4: Chemical Foundations: Elements, Atoms, And Ions

Section: Chapter Questions

Problem 21QAP: Scientists J. J. Thomson and William Thomson (Lord Kelvin) made numerous contributions to our...

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Similar questions

Your friend tells you about an article that he read in a tabloid that reported the discovery of a new form of carbon containing eight protons in the nucleus of its atoms. He claims that scientists are eager to explore the properties of this new form of carbon. What is wrong with the tabloid's claim? a. Nothing. The claim is believable. b. The claim must be false because an atom with eight protons would be oxygen, which is already known. c. The claim must be false because all forms of carbon are already known.
The chemical name for limestone, a compound of calcium, carbon, and oxygen, is calcium carbonate. When heated, limestone decomposes into solid calcium oxide and gaseous carbon dioxide. From the names of the products, tell where you might find the atoms of each element after the reaction. How does Daltons atomic theory explain this?
What 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?
Scientists J. J. Thomson and William Thomson (Lord Kelvin) made numerous contributions to our understanding of the atom’s structure. Which subatomic particle did J. J. Thomson discover, and what did this lead him to postulate about the nature of the atom? William Thomson postulated what became known as the “plum pudding” model of the atom’s structure. What did this model suggest?
Dalton’s original atomic theory proposed that all atoms of a given element areidentical. Did this turn out to be true after further experimentation was carried out? Explain.
One of the best indications of a useful theory is that it raises more questions for further experimentation than it originally answered. How does this apply to Dalton’s atomic theory? Give examples.
State the main points of Dalton’s atomic theory usingyour own words. Which parts of Dalton’s theory werelater found to be erronous? Explain why.
You have learned about three different models of the atom: Dalton’s model, Thomson’s model, and Rutherford’s model. What if Dalton was correct? What would Rutherford have expected from his experiments with the metal foil? What if Thomson was correct? What would Rutherford have expected from his experiments with the metal foil?
One of the early models of the atom proposed that atoms were wispy balls of positive charge with the electrons evenly distributed throughout. What would you expect to observe if you conducted Rutherfords experiment and the atom had this structure?
One of the best indications of a useful theory is that it raises more questions for further experimentation than it originally answered. Does this apply to Daltons atomic theory? Give examples.
According to Rutherfords model of the atom, how many electrons would be found in each of the following atoms? a. sodium, which has 11 protons in its nucleus b. calcium, which has 20 protons in its nucleus
The existence of isotopes violates one of the original ideas of Dalton’s atomic theory. Which one?

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