Solutions for Introducing Chemistry
Problem 1SAQ:
Q1. Which statement is not part of Dalton’s theory?
a. Each element is composed of indestructible...Problem 2SAQ:
Q2. Which statement best summarizes the nuclear model of the atom that emerged from Rutherford’s...Problem 3SAQ:
Q3. An ion composed of which of these particles would have a mass of approximately 16 amu and a...Problem 5SAQ:
Which element is a halo0gen? a. Ne b. O c. Ca d. IProblem 8SAQ:
How many element does the predictable (most common) ion of fluorine contain? a. 1 b. 4 c. 9 d. 10Problem 10SAQ:
Q10. Determine the number of protons, neutrons, and electrons in
a. 16 proton; 32 neutrons; and 18...Problem 11SAQ:
Q11. What is the charge of the Cr ion that contains 21 electrons?
a. 2−
b. 3−
c. 2+
d. 3+
Problem 12SAQ:
An element has four naturally occurring isotopes; the table lists the mass and natural abundance of...Problem 3E:
Describe Rutherfords gold foil experiment and the results of that experiment. How did these results...Problem 6E:
What is electrical charge?Problem 9E:
What is a chemical symbol?Problem 12E:
What is the man idea in the periodic law?Problem 13E:
How is the periodic table organized?Problem 17E:
What is a family or group of elements?Problem 18E:
Locate each group of elements on the periodic table and list its group number. a. alkali metals b....Problem 19E:
19. What is an ion?
Problem 21E:
21. Locate each group on the periodic table and list the charge of the ions it tends to form.
a....Problem 22E:
22. What are isotopes?
Problem 25E:
What notations are commonly used to specify isotopes? What do each of the number in these symbols...Problem 26E:
What is the atomic mass of an element?Problem 27E:
27. Which statement are inconsistent with Dalton’s atomic theory as it was originally stated?...Problem 28E:
Which statements are consistent with Daltons atomic theory as it was originally stated? Explain your...Problem 29E:
Which statements are inconsistent with Rutherfords nuclear theory as it was originally stated?...Problem 30E:
30. Which statement are consistent with Rutherford’s nuclear theory as it was originally stated?...Problem 32E:
32. Rutherford’s experiment indicated that matter was not as uniform as it appears. What part of his...Problem 33E:
33. Which statement about electrons is true?
a. Electrons attract one another.
b. Electrons are...Problem 34E:
34. Which statement about electrons is false?
a. Most atoms have more electrons than protons.
b....Problem 35E:
35. Which statement about protons is true?
a. Protons have twice the mass of neutrons.
b. Protons...Problem 36E:
36. Which statement about protons is false?
a. Protons have about the same mass neutrons.
b. Protons...Problem 38E:
A helium nucleus has two has two neutrons. How many electrons would it take to equal the mass of a...Problem 43E:
43. How many protons are in the nucleus of an atom of each element?
a. Ar
b. Sn
c. Xe
d. O
e. Tl
Problem 44E:
How many protons are in the nucleus of an atom of each element? a. Ti b. Li c. U d. Br e. FProblem 45E:
45. List the symbol and atomic number of each element.
a. carbon
b. nitrogen
c. sodium
d....Problem 46E:
46. List the symbol and atomic number of each element.
a. boron
b. neon
c. silver
d. mercury
e....Problem 49E:
Fill in the blanks to complete the table. Element Name Element Symbol Atomic Number Au 79 Tin ...Problem 50E:
Fill in the blanks to complete the table. Element Name Element Symbol Atomic Number Al 13 iodine ...Problem 52E:
Classify each element as a metal, nonmetal, or metalloid. a. Na b. Ge c. Si d. Br e. AgProblem 53E:
Which elements would you expect to lose electrons in chemical changes? a. potassium b. sulfur c....Problem 54E:
54. Which elements would you expect to gain electrons in chemical changes?
a. nitrogen
b. iodine
c....Problem 57E:
57. Which elements are alkaline earth metals?
a. sodium
b. aluminum
c. calcium
d. lithium
Problem 58E:
Which elements are alkaline earth metal? a. rubidium b. tungsten c. magnesium d. cesium e. berylliumProblem 60E:
Which elements are alkali metals? a. scandium b. iron c. potassium d. lithium e. cobaltProblem 61E:
Classify each element as a halogen, a noble gas, or neither. a. Cl b. Kr c. F d. Ga e. HeProblem 63E:
63. To what group number does each element belong?
a. oxygen
b. aluminum
c. silicon
d. tin
e....Problem 65E:
Which element do you expect to be most like sulfur? Why? a. nitrogen b. oxygen c. fluorine d....Problem 66E:
Which element do you expect to be most like magnesium? Why? a. potassium b. silver c. bromine d....Problem 67E:
Which pair of elements do you expect to be most similar? Why? a. Si and P b. Cl and F c. Na and Mg...Problem 75E:
Determine the change of each ion. a. oxygen ion with 10 electrons b. aluminum ion with 10 electrons...Problem 76E:
76. Determine the charge of each ion.
a. tungsten ion with 68 electrons
b. tellurium ion with 54...Problem 77E:
Determine the number of protons and electrons in each ion. a. Na+ b. Ba2+ c. O2 d. Co3+Problem 80E:
Determine whether each statement is true or false. If false, correct it. a. The Fe2+ ion contains 29...Problem 83E:
Predict how many electrons each element will most likely gain or lose. a. Ga b. Li c. Br d. SProblem 84E:
Predict how many electrons each element will most likely gain or lose. a. l b. Ba c. Cs d. SeProblem 85E:
85. Fill in the blanks to compele the table.
Symbole lon commonly Formed Number of Electrons...Problem 86E:
Fill in the blacks to complete the table. Symbol Ion CommonlyFormed Number ofElectronsIn ion Number...Problem 87E:
87. Determine the atomic number and mass number for each isotope.
a. the hydrogen isotope with 2...Problem 89E:
89. Write isotopic symbols in the form for each isotope.
a. the oxygen isotope with 8 neutrons
b....Problem 90E:
Write isotopic symbol in the form X-A (for example, C-13) for each isotope. a. the iodine isotope...Problem 91E:
Write the symbol for each isotope in the form XZA. a. cobalt-60 b. neon-22 c. iodine-131 d....Problem 94E:
Determine the number of protons and neutrons in each isotope. a. P1533 b. K1940 c. R86222n d. T4399cProblem 95E:
Carbon 14, present within living organisms and substances derived from living organisms, is often...Problem 96E:
Plutonium-239 is used in nuclear bombs. Determine the number of protons and neutonulm-239 and write...Problem 97E:
Rubidium has two naturally occurring isotopes: Rb-85 with mass 84. 9118 amu and a natural abundance...Problem 98E:
98. Silicon has three naturally occurring isotopes: Si-28 with mass 27. 9769 amu and a natural...Problem 99E:
Bromine has two naturally occurring isotopes (Br-79 and Br-81) and atomic mass of 79.904 amu. a. If...Problem 100E:
Silver has two naturally occurring isotopes (Ag-107 and Ag-109). a. Use the periodic table to find...Problem 101E:
101. An element has two naturally occurring isotopes. 1 has a mass of 120. 9038 amu and a relative...Problem 102E:
Copper has two naturally occurring isotopes. Cu-63 has a mass of 62.939 amu and abundance of 69.17%....Problem 103E:
Electrical charge is sometimes reported in coulombs (C). On this scale, 1 electron has a charge of...Problem 104E:
104. How many excess protons are in a charged object with a charged of +398 mC (millicoulombus)? The...Problem 105E:
105. The hydrogen atom contains 1 proton 1 electron. The radius of the proton is approximately 1.0...Problem 106E:
106. Carbon-12 contains 6 protons and 6 neutrons. The radius of the nucleus is approximately 2.7 fm,...Problem 107E:
Prepare a table like Table 4.2 for the four different isotopes of Sr that the natural abundance and...Problem 108E:
108. Determine the number of protons and neutrons in each isotope of chromium and use the listed...Problem 109E:
Fill in the blanks to complete the table. Symbol Z A Number ofprotons Number ofElectrons Number...Problem 111E:
Europium has two naturally occurring isotopes: Eu-151 with a mass of 150.9198 amu and a natural...Problem 112E:
Rhenium has two naturally occurring isotopes: Re-185 with a natural abundance of 37.40% and Re-187...Problem 113E:
Chapter 1 describes the difference between observation, laws, and theories. Cite two examples from...Problem 114E:
114. Chapter1 describes the difference between observations, laws, and theories. Cite one example of...Problem 115E:
The atomic mass of fluorine is 19. 00 amu, and all fluorine atoms in naturally occurring sample of...Problem 116E:
116. The atomic mass of germanium is 72.61 amu. Is it likely that any individual germanium atoms...Problem 118E:
Gallium has only two naturally occurring isotopes, Ga-69 and Ga-71. The mass of Ga-69 is 68.9256...Problem 119E:
119. The figure shown here is a representation of 50 atoms of a fictitious element with the symbol...Problem 120E:
120. Neutron stars are believed to be composed of solid nuclear matter, primarily neutrons.
a. If...Browse All Chapters of This Textbook
Chapter 1 - The Chemical WorldChapter 2 - Measurement And Problem SolvingChapter 3 - Matter And EnergyChapter 4 - Atoms And ElementsChapter 5 - Molecules And CompoundsChapter 6 - Chemical CompositionChapter 7 - Chemical ReactionsChapter 8 - Quantities In Chemical ReactionsChapter 9 - Electrons In Atoms And The Periodic TableChapter 10 - Chemical Bonding
Sample Solutions for this Textbook
We offer sample solutions for Introducing Chemistry homework problems. See examples below:
Chapter 1, Problem 1SAQChapter 2, Problem 1SAQChapter 3, Problem 1SAQChapter 4, Problem 1SAQChapter 5, Problem 1SAQChapter 6, Problem 1SAQChapter 7, Problem 1SAQChapter 8, Problem 1SAQChapter 9, Problem 1SAQ
Chapter 10, Problem 1SAQReason for correct option: The average kinetic energy that arises due to motion of gas particles is...Chapter 12, Problem 1SAQChapter 13, Problem 1SAQChapter 14, Problem 1SAQChapter 15, Problem 1SAQChapter 16, Problem 1SAQReasons for Correct option: The atomic number and mass number of bismuth-214 is 83 and 214...Reason for correct option: Carbon contains four valence electrons in its outer shell. It forms...Reason for the correct option: The structure is: The above structure contains multiple hydroxyl...
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