Chemistry with Access Code, Hybrid Edition
9th Edition
ISBN: 9781285188492
Author: Steven S. Zumdahl
Publisher: CENGAGE L
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Textbook Question
Chapter 2, Problem 96AE
Identify each of the following elements:
- a. a member of the same family as oxygen whose most stable ion contains 54 electrons
- b. a member of the alkali metal family whose most stable ion 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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[References]
Americium-241 is an isotope of americium used in household smoke detectors. This element has 11 known isotopes, none of which occurs in nature, but must be made in the
laboratory.
a. Give the number of protons in an atom of the isotope americium-242.
Number of protons
b. Give the number of electrons in an atom of the isotope americium-242.
Number of electrons
c. Give the number of neutrons in an atom of the isotope americium-242.
Number of neutrons =
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Determine the number of protons and electrons in each ion
I¹-
A.53 protons, 52 electrons
B.53 protons, 54 electrons
C.17 protons, 7 electrons
D. 53 protons, 53 electrons
Chapter 2 Solutions
Chemistry with Access Code, Hybrid Edition
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 average atomic masses of some elements may vary, depending upon the sources of their ores. Naturally occurring boron consists of two isotopes with accurately known masses ( 10B, 10.0129 amu and 11B, 11.0931 amu). The actual atomic mass of boron can vary from 10.807 to 10.8 19, depending on whether the mineral source is from Turkey or the United States. Calculate the percent abundances leading to the two values of the average atomic masses of boron from these two countries.arrow_forwardThe element silver (Ag) has two naturally occurring isotopes: 109 Ag and 107Ag with a mass of 106.905 u. Silver consists of 51.82% 107Ag and has an average atomic mass of 107.868 u. Calculate the mass of 109Ag.arrow_forwardIdentify each of the following elements: a. a member of the same family as oxygen whose most stable ion contains 54 electrons b. a member of the alkali metal family whose most stable ion contains 36 electrons c. a noble gas with 18 protons in the nucleus d. a halogen with 85 protons and 85 electronsarrow_forward
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