Chemical Principles
8th Edition
ISBN: 9781305581982
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Textbook Question
Chapter 2, Problem 80AE
Identify each of the following elements.
a. a member of the same family as oxygen whose moststable ion contains 54 electrons
b. a member of the alkali metal family whose most stableion contains 36 electrons
c. a noble gas with 18 protons in the nucleus
d. a halogen with 85 protons and 85 electrons
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Chapter 2 Solutions
Chemical Principles
Ch. 2 - You may have noticed that when water boils, you...Ch. 2 - Which of the following is true about an individual...Ch. 2 - How would you go about finding the number of...Ch. 2 - These questions concern the work of J. J. Thomson:...Ch. 2 - Heat is applied to an ice cube in a closed...Ch. 2 - You have a chemical in a sealed glass container...Ch. 2 - Prob. 7DQCh. 2 - One of the best indications of a useful theory is...Ch. 2 - Prob. 9DQCh. 2 - How does Dalton’s atomic theory account for each...
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- In the following drawing, the green spheres represent atoms of a certain element. The purple spheres represent atoms of another element. If the spheres of different elements touch, they are part of a single unit of a compound. The following chemical change represented by these spheres may violate one of the ideas of Dalton’s atomic theory. Which one?arrow_forwardScientists 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_forwardA atom becomes an ion that possesses a negative charge. The atom must have: a.gained protons. b.lost protons. c.lost electrons. d.gained electrons.arrow_forward
- These questions concern the work of J. J. Thomson: From Thomson’s work, which particles do you think he would feel are most important in the formation of compounds (chemical changes) and why? Of the remaining two subatomic particles, which do you place second in importance for forming compounds and why? Come up with three models that explain Thomson’s findings and evaluate them. To be complete you should include Thomson’s findings.arrow_forwardIn 1886 Eugene Goldstein observed positively charged particles moving in the opposite direction to electrons in a cathode ray tube (illustrated below). From their mass, he concluded that these particles were formed from residual gas in the tube. For example, if the cathode ray tube contained helium, the canal rays consisted of He+ ions. Describe a process that could lead to these ions. Canal rays. In 1886, Eugene Goldstein detected a stream of particles traveling in the direction opposite to that of the negatively charged cathode rays (electrons). He called this stream of positive particles "canal rays:"arrow_forwardConstant Composition of Compounds Two samples of sugar are decomposed into their constituent elements. One sample of sugar produces 18.0 g carbon, 3.0 g hydrogen, and 24.0 g oxygen; the other sample produces 24.0 g carbon, 4.0 g hydrogen, and 32.0 g oxygen. Find the ratio of carbon to hydrogen and the ratio of oxygen to hydrogen for each of the samples, and show they are consistent with the law of constant composition.arrow_forward
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