Science
ChemistryIntroduction to General, Organic and Biochemistry2-28 How many neutrons are in: (a) a carbon atom of mass number 13? (b) a germanium atom of mass number 73? (c) an osmium atom of mass number 188? (d) a platinum atom of mass number 195?

2-28 How many neutrons are in: (a) a carbon atom of mass number 13? (b) a germanium atom of mass number 73? (c) an osmium atom of mass number 188? (d) a platinum atom of mass number 195?

BuyFind

Introduction to General, Organic a...

11th Edition
Frederick A. Bettelheim + 4 others
Publisher: Cengage Learning
ISBN: 9781285869759
BuyFind

Introduction to General, Organic a...

11th Edition
Frederick A. Bettelheim + 4 others
Publisher: Cengage Learning
ISBN: 9781285869759

Solutions

Chapter
Section
Problem 2.8P
Problem 2.9P
Problem 2.10P
Problem 2.11P
Problem 2.12P
Problem 2.13P
Problem 2.14P
Problem 2.15P
Problem 2.16P
Problem 2.17P
Problem 2.18P
Problem 2.19P
Problem 2.20P
Problem 2.21P
Problem 2.22P
Problem 2.23P
Problem 2.24P
Problem 2.25P
Problem 2.26P
Problem 2.27P
Problem 2.28P
Problem 2.29P
Problem 2.30P
Problem 2.31P
Problem 2.32P
Problem 2.33P
Problem 2.34P
Problem 2.35P
Problem 2.36P
Problem 2.37P
Problem 2.38P
Problem 2.39P
Problem 2.40P
Problem 2.41P
Problem 2.42P
Problem 2.43P
Problem 2.44P
Problem 2.45P
Problem 2.46P
Problem 2.47P
Problem 2.48P
Problem 2.49P
Problem 2.50P
Problem 2.51P
Problem 2.52P
Problem 2.53P
Problem 2.54P
Problem 2.55P
Problem 2.56P
Problem 2.57P
Problem 2.58P
Problem 2.59P
Problem 2.60P
Problem 2.61P
Problem 2.62P
Problem 2.63P
Problem 2.64P
Problem 2.65P
Problem 2.66P
Problem 2.67P
Problem 2.68P
Problem 2.69P
Problem 2.70P
Problem 2.71P
Problem 2.72P
Problem 2.73P
Problem 2.74P
Problem 2.75P
Problem 2.76P
Problem 2.77P
Problem 2.78P
Problem 2.79P
Problem 2.80P
Problem 2.81P
Problem 2.82P
Problem 2.83P
Problem 2.84P
Problem 2.85P
Problem 2.86P
Problem 2.87P
Problem 2.88P
Problem 2.89P
Problem 2.90P
Problem 2.91P
Problem 2.92P
Problem 2.93P
Problem 2.94P
Problem 2.95P
Problem 2.96P
Problem 2.97P
Problem 2.98P
Problem 2.99P
Problem 2.100P
Problem 2.101P
Problem 2.102P
Problem 2.103P
Problem 2.104P
Problem 2.105P
Problem 2.106P
Chapter 2, Problem 2.28P
Textbook Problem

2-28 How many neutrons are in:

(a) a carbon atom of mass number 13?

(b) a germanium atom of mass number 73?

(c) an osmium atom of mass number 188?

(d) a platinum atom of mass number 195?

Expert Solution

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Chapter 2,
Problem 2.27P
Chapter 2,
Problem 2.29P

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Chapter 2 Solutions

Introduction to General, Organic and Biochemistry
Ch. 2.2 - Problem 2-1 Write the formulas of compounds in...Ch. 2.4 - Problem 2-2 What is the mass number of an atom...Ch. 2.4 - Problem 2-3 Name the elements given in Problem...Ch. 2.4 - Problem 2-4 (a) What are the atomic numbers of...Ch. 2.4 - Problem 2-5 Two iodine isotopes are used in...Ch. 2.4 - Problem 2-6 The atomic weight of lithium is 6.941...Ch. 2.6 - Problem 2-7 Write the Lewis dot structure for the...Ch. 2 - 2-8 In what way(s) was Democritus’s atomic theory...Ch. 2 - 9 Answer true or false. (a) Matter is divided into...Ch. 2 - 2-10 Classify each of the following as an element,...
Ch. 2 - 2-11 Name these elements (try not to look at a...Ch. 2 - 2-12 The elements game, Part 1. Name and give the...Ch. 2 - 2-13 The elements game. Part II. Name and give the...Ch. 2 - 2-14 The elements game, Part III. Give the names...Ch. 2 - 2-15 Write the formulas of compounds in which the...Ch. 2 - 2-16 Write the formulas of compounds in which the...Ch. 2 - 2-17 How does Dalton’s atomic theory explain: (a)...Ch. 2 - 2-18 When 2.16 g of mercuric oxide is heated, it...Ch. 2 - 2-19 The compound carbon monoxide contains 42.9%...Ch. 2 - 2-20 Calculate the percentage of hydrogen and...Ch. 2 - 2-21 Answer true or false. (a) A proton and an...Ch. 2 - 2-22 Where in an atom are these subatomic...Ch. 2 - 2-23 It has been said, “The number of protons...Ch. 2 - 2-24 What is the mass number of an atom with: (a)...Ch. 2 - 2-25 Name and give the symbol for each element in...Ch. 2 - 2-26 Given these mass numbers and number of...Ch. 2 - 2-27 If each atom in Problem 2-26 acquired two...Ch. 2 - 2-28 How many neutrons are in: (a) a carbon atom...Ch. 2 - 2-29 How many protons and how many neutrons does...Ch. 2 - 2.30 How many neutrons and protons are in each...Ch. 2 - 2-31 Tin-118 is one of the isotopes of tin. Name...Ch. 2 - 2-32 What is the difference between atomic number...Ch. 2 - 2-33 Define: (a) Ion (b) IsotopeCh. 2 - 2-34 There are only two naturally occurring...Ch. 2 - 2-35 The two most abundant naturally occurring...Ch. 2 - 2-36 Another isotope of carbon, carbon-14, occurs...Ch. 2 - 2-37 The isotope carbon-11 does not occur in...Ch. 2 - 2-38 Other isotopes used in PET imaging are...Ch. 2 - 2-39 Americium-241 is used in household smoke...Ch. 2 - 2-40 In dating geological samples, scientists...Ch. 2 - 2-41 Answer true or false. (a) Mendeleyev...Ch. 2 - 2-42 How many metals, metalloids, and nonmetals...Ch. 2 - 2-43 Which group(s) of the Periodic Table...Ch. 2 - 2-44 Which period(s) in the Periodic Table...Ch. 2 - 2-45 Group the following element8 according to...Ch. 2 - 2-46 Which are transition elements? (a) Pd (b) K...Ch. 2 - 2-47 Which element in each pair is more metallic?...Ch. 2 - 2-48 Classify these elements as metals, nonmetals,...Ch. 2 - 2-49 Answer true or false. (a) To say that “energy...Ch. 2 - 2-50 How many periods of the Periodic Table have...Ch. 2 - 2-51 What is the correlation between the group...Ch. 2 - 2-52 Given your answer to Problem 2-51, write the...Ch. 2 - 2-53 Write the condensed ground-state electron...Ch. 2 - 2-54 Write the Lewis dot structure for each...Ch. 2 - 2-55 Write the condensed ground-state electron...Ch. 2 - 2-56 Write the Lewis dot structure for each...Ch. 2 - 2-57 What are the similarities and differences in...Ch. 2 - 2-58 Silicon, atomic number 14, is in Group 4A....Ch. 2 - 2-59 You are presented with a Lewis dot structure...Ch. 2 - 2-60 The electron configurations for the elements...Ch. 2 - 2-61 Answer true or false. (a) Elements in the...Ch. 2 - 2-62 Why do the elements in column 1A of the...Ch. 2 - 2-63 Answer true or false. (a) Ionization energy...Ch. 2 - 2-64 Consider the elements B, C, and N. Using only...Ch. 2 - 2-65 Account for the following observations. (a)...Ch. 2 - 2-66 Using only the Periodic Table, arrange the...Ch. 2 - 2-67 Account for the fact that the first...Ch. 2 - 2-68 Every atom except hydrogen has a series of...Ch. 2 - 2-69 (Chemical Connections 2A) Why does the body...Ch. 2 - 2-70 (Chemical Connections 2B) Which are the two...Ch. 2 - 2-71 (Chemical Connections 2C) Why is strontium-90...Ch. 2 - 2-72 (Chemical Connections 2D) Bronze is an alloy...Ch. 2 - 2-73 (Chemical Connections 2D) Copper is a soft...Ch. 2 - 2-74 Give the designations of all subshells in...Ch. 2 - 2-75 Tell whether metals or nonmetals are more...Ch. 2 - 2-76 Explain why: (a) atomic radius decreases...Ch. 2 - 2-77 Name and give the symbol of the element with...Ch. 2 - 2-78 What is the outer-shell electron...Ch. 2 - 2-79 Determine the number of protons, electrons,...Ch. 2 - 2-80 What percentage of the mass of each element...Ch. 2 - 2.81 Do isotopes of the heavy elements (for...Ch. 2 - 2-82 What is the symbol for each of the following...Ch. 2 - 2-83 The natural abundance of boron isotopes is as...Ch. 2 - 2-84 How many electrons are in the outer shell of...Ch. 2 - 2-85 The mass of a proton is 1.67 × 10-24g. The...Ch. 2 - 2-86 (a) What are the charges of an electron, a...Ch. 2 - 2-87 What is the name of this element, and how...Ch. 2 - 2-88 Based on the data presented in Figure 2-16,...Ch. 2 - 2-89 Assume that a new element has been discovered...Ch. 2 - 2-90 Explain why the sizes of atoms change when...Ch. 2 - 2-91 These are the first two ionization energy for...Ch. 2 - 2-92 Which has the largest radius: O2-, F- or F?...Ch. 2 - 2-93 Arrange the following elements in order of...Ch. 2 - 2-94 Using your knowledge of trends in element...Ch. 2 - 2-95 Name the elements in Group 3A. What does the...Ch. 2 - 2-96 Using the orbital box diagrams and the noble...Ch. 2 - 2-97 Explain why the Ca3+ ion is not found in...Ch. 2 - 2-98 Explain how the ionization energy of atoms...Ch. 2 - 2-99 A 7.12 g sample of magnesium is heated with...Ch. 2 - 2-100 A 0.100 g sample of magnesium, when combined...Ch. 2 - 2-101 Complete the following table: Symbol Atomic...Ch. 2 - 2-102 An element consists of 90.51% of an isotope...Ch. 2 - 2-103 The element silver has two naturally...Ch. 2 - 2-104 The average atomic weight of lithium is...Ch. 2 - 2-105 Suppose that you face a problem similar to...Ch. 2 - 2-106 Compare the neutron to proton ratio for the...

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