Chemistry
9th Edition
ISBN: 9781133611097
Author: Steven S. Zumdahl
Publisher: Cengage Learning
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Chapter 2, Problem 21Q
The contributions of J. J. Thomson and Ernest Rutherford led the way to today’s understanding of the structure of the atom. What were their contributions?
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Chapter 2 Solutions
Chemistry
Ch. 2 - Use Daltons atomic theory to account for each of...Ch. 2 - What evidence led to the conclusion that cathode...Ch. 2 - What discoveries were made by J. J. Thomson, Henri...Ch. 2 - Consider Ernest Rutherfords -particle bombardment...Ch. 2 - Do the proton and the neutron have exactly the...Ch. 2 - What is the distinction between atomic number and...Ch. 2 - Distinguish between the terms family and period in...Ch. 2 - The compounds AlCl3, CrCl3, and ICl3 have similar...Ch. 2 - Prob. 9RQCh. 2 - How would you name HBrO4, KIO3, NaBrO2, and HIO?...
Ch. 2 - Which of the following is true about an individual...Ch. 2 - How would you go about finding the number of chalk...Ch. 2 - These questions concern the work of J. J. Thomson....Ch. 2 - Prob. 4ALQCh. 2 - You have a chemical in a sealed glass container...Ch. 2 - The formula of water is If-O. Which of the...Ch. 2 - You may have noticed that when water boils, you...Ch. 2 - One of the best indications of a useful theory is...Ch. 2 - Prob. 9ALQCh. 2 - Prob. 10ALQCh. 2 - Label each of the following as an atomic element,...Ch. 2 - Prob. 12ALQCh. 2 - Prob. 13ALQCh. 2 - Prob. 14ALQCh. 2 - Which of tire following explain how an ion is...Ch. 2 - What refinements had to be made in Daltons atomic...Ch. 2 - When hydrogen is burned in oxygen to form water,...Ch. 2 - The two most reactive families of elements are the...Ch. 2 - Explain the law of conservation of mass, the law...Ch. 2 - Section 2.3 describes the postulates of Daltons...Ch. 2 - The contributions of J. J. Thomson and Ernest...Ch. 2 - Prob. 22QCh. 2 - The number of protons in an atom determines the...Ch. 2 - If the volume of a proton were similar to the...Ch. 2 - Prob. 25QCh. 2 - List some characteristic properties that...Ch. 2 - Consider the elements of Group 4A (the carbon...Ch. 2 - Distinguish between the following terms. a....Ch. 2 - Label the type of bonding for each of the...Ch. 2 - The vitamin niacin (nicotinic acid. C6H5NO2) can...Ch. 2 - Prob. 31QCh. 2 - Prob. 32QCh. 2 - When mixtures of gaseous H2 and gaseous Cl2 react,...Ch. 2 - Observations of the reaction between nitrogen gas...Ch. 2 - A sample of chloroform is found to contain 12.0 g...Ch. 2 - A sample of H2SO4 contains 2.02 g of hydrogen,...Ch. 2 - Hydrazine, ammonia, and hydrogen azide all contain...Ch. 2 - Consider 100.0-g samples of two different...Ch. 2 - The three most stable oxides of carbon ire carbon...Ch. 2 - Two elements. R and Q, combine to form two binary...Ch. 2 - In Section 1.1 of the text, the concept of a...Ch. 2 - In a combustion reaction, 46.0 g of ethanol reacts...Ch. 2 - Early tables of atomic weights (masses) were...Ch. 2 - Indium oxide contains 4.784 g of indium for every...Ch. 2 - Prob. 45ECh. 2 - If you wanted to make an accurate scale model of...Ch. 2 - In an experiment it was found that the total...Ch. 2 - A chemist in a galaxy tar, far away performed the...Ch. 2 - What are the symbols of the following metals:...Ch. 2 - What are the symbols of the following nonmetals:...Ch. 2 - Give the names of the nonmetals that correspond to...Ch. 2 - a. Classify the following elements as metals or...Ch. 2 - a. List the noble gas elements. Which of the noble...Ch. 2 - For each of the following sets of elements, label...Ch. 2 - Prob. 56ECh. 2 - Prob. 57ECh. 2 - Write the atomic symbol (ZAX) for each of the...Ch. 2 - Write the symbol of each atom using the ZAX...Ch. 2 - For carbon-14 and carbon-12, how many protons and...Ch. 2 - How many protons and neutrons are in the nucleus...Ch. 2 - Prob. 62ECh. 2 - For each of the following ions, indicate the...Ch. 2 - How many protons, neutrons, and electrons are in...Ch. 2 - Prob. 65ECh. 2 - What is the symbol of an ion with 16 protons, 18...Ch. 2 - Complete the following table: Symbol Number of...Ch. 2 - Complete the following table: Symbol Number of...Ch. 2 - Would you expect each of the following atoms to...Ch. 2 - Prob. 70ECh. 2 - Name the compounds in parts ad and write the...Ch. 2 - Name the compounds in parts a-d and write the...Ch. 2 - Prob. 73ECh. 2 - Prob. 74ECh. 2 - Prob. 75ECh. 2 - Prob. 76ECh. 2 - Prob. 77ECh. 2 - Prob. 78ECh. 2 - Prob. 79ECh. 2 - Prob. 80ECh. 2 - Prob. 81ECh. 2 - Prob. 82ECh. 2 - Prob. 83ECh. 2 - Write the formula for each of the following...Ch. 2 - Prob. 85ECh. 2 - Write the formula for each of the following...Ch. 2 - Prob. 87ECh. 2 - Each of the following compounds is incorrectly...Ch. 2 - Chlorine has two natural isotopes: 1737Cl and...Ch. 2 - What are the symbols for the following nonmetal...Ch. 2 - Four Fe2+ ions are key components of hemoglobin,...Ch. 2 - Which of the following statements is(are) true?...Ch. 2 - The isotope of an unknown element, X, has a mass...Ch. 2 - Prob. 94AECh. 2 - Prob. 95AECh. 2 - Identify each of the following elements: a. a...Ch. 2 - Prob. 97AECh. 2 - Prob. 98AECh. 2 - Prob. 99AECh. 2 - Prob. 100AECh. 2 - Prob. 101AECh. 2 - Prob. 102AECh. 2 - Complete the following table. Atom/Ion Protons...Ch. 2 - Which of the following is{are) correct? a. 40Ca2...Ch. 2 - Prob. 105CWPCh. 2 - Prob. 106CWPCh. 2 - Prob. 107CWPCh. 2 - Prob. 108CWPCh. 2 - Reaction of 2.0 L of hydrogen gas with 1.0 L of...Ch. 2 - A combustion reaction involves the reaction of a...Ch. 2 - A chemistry instructor makes the following claim:...Ch. 2 - The early alchemists used to do an experiment in...Ch. 2 - Consider the chemical reaction as depicted below....Ch. 2 - Each of the following statements is true, but...Ch. 2 - You have two distinct gaseous compounds made from...Ch. 2 - A single molecule has a mass of 7.31 1023 g....Ch. 2 - You take three compounds, each consisting of two...Ch. 2 - Prob. 119IPCh. 2 - Prob. 120IPCh. 2 - Using the information in Table 2.1, answer the...
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- The Rutherford experiment was performed and its conclusions reached before protons and neutrons were discovered. When they were found, why was it believed that they were in the nucleus of the atom?arrow_forwardConsider Ernest Rutherfords -particle bombardment experiment illustrated in Fig. 2.12. How did the results of this experiment lead Rutherford away from the plum pudding model of the atom to propose the nuclear model of the atom?arrow_forwardWithout consulting your textbook or notes, state as many points as you can of Dalton’s atomic theory. Explain in your own words each point of the theory.arrow_forward
- The contributions of J. J. Thomson and Ernest Rutherford led the way to todays understanding of the structure of the atom. What were their contributions?arrow_forwardYou 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?arrow_forwardYour 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.arrow_forward
- 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?arrow_forwardOne 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?arrow_forwardNow that you have gone through Chapter 4, go back to Section 4.3 and review Dalton’s Atomic Theory. Which of the premises are no longer accepted? Explain your answer.arrow_forward
- 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.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_forwardWhat is meant by stating that the charge of an electron is 1? What is the symbol of the electron?arrow_forward
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The Bohr Model of the atom and Atomic Emission Spectra: Atomic Structure tutorial | Crash Chemistry; Author: Crash Chemistry Academy;https://www.youtube.com/watch?v=apuWi_Fbtys;License: Standard YouTube License, CC-BY