Chapter 02 – Atoms, Molecules, and Ions
56. Give the formula for cobalt(II) chlorate dihydrate.
57. Name the compound Co(NO3)2.
58. Name the compound CuSO4.
Chapter 02 – Atoms, Molecules, and Ions
59. Name the compound Al2O3.
60. Which is the formula for lead(IV) chloride?
61. What type of compound is Mg(NO3)2?
Chapter 02 – Atoms, Molecules, and Ions
62. What type of compound is NH4NO3?
63. What type of compound is IF5?
64. What type of compound is HBrO2?
Chapter 02 – Atoms, Molecules, and Ions
65. What type of compound is NaOH?
66. What type of compound is H2SO3?
67. What type of compound is NH3?
Chapter 02 – Atoms, Molecules, and Ions
68. Name the acid H3PO4 (dissolved in water).
69. Name the acid H2SO3 (dissolved in water).
Chapter 02 – Atoms, Molecules, and Ions
70. The chemical formula for iron(II) nitrate is
71. Name the compound Co2(SO3)3 .
Chapter 02 – Atoms, Molecules, and Ions
72. Name the compound CrO3.
73. Name the compound Cl2O5.
74. Name the compound N2O4.
Chapter 02 – Atoms, Molecules, and Ions
75. Name the compound NO2.
76. Name the compound SO3.
77. The straight chain hydrocarbon that contains six carbon atoms is
Chapter 02 – Atoms, Molecules, and Ions
78. What is the law of conservation of mass?
79. Of the following which is NOT a contribution of Marie Curie?
80. Which listing provides the three common types of radiation that can be produced by the
decay of radioactive substances like uranium?
Chapter 02 – Atoms, Molecules, and Ions
81. Which scientist is credited with suggesting the name “radioactivity” to describe the
spontaneous emission of particles and/or radiation?
82. Select True or False: Using a cathode ray tube, J. J. Thomson determined the magnitude
of the electric charge on the electron.
83. Select True or False: When a beam of alpha particles passes between two electrically
charged plates, the beam is deflected toward the positive plate.
Chapter 02 – Atoms, Molecules, and Ions
85. How many electrons, protons, and neutrons does an iron-55 atom have?
86. How many protons are there in one atom of nickel?
Chapter 02 – Atoms, Molecules, and Ions
87. How many protons are there in one atom of magnesium?
88. How many protons are there in one atom of xenon?
89. Almost all the mass of an atom is concentrated in the _____.
Chapter 02 – Atoms, Molecules, and Ions
90. The atomic number is equal to the number of _______ in the nucleus of each atom of an
element.
91. Select True or False: The number of neutrons in all atoms of an element is the same.
Chapter 02 – Atoms, Molecules, and Ions
92. How many protons are there in one atom of uranium?
93. Select True or False: Isotopes are atoms of the same element that have the same atomic
number but different mass numbers.
Chapter 02 – Atoms, Molecules, and Ions
94.
The table below describes four atoms.
Which atoms represent the same element?
Chapter 02 – Atoms, Molecules, and Ions
95.
Consider a neutral atom of the following isotope of sulfur:
How many electrons, protons, and neutrons does the atom contain?
96.
How many electrons, protons, and neutrons are in a neutral atom of the following isotope of calcium?
Chapter 02 – Atoms, Molecules, and Ions
97.
How many electrons, protons, and neutrons are in a neutral atom of the following isotope of krypton?
98.
How many electrons, protons, and neutrons are in a neutral atom of the following isotope of gadolinium?
Chapter 02 – Atoms, Molecules, and Ions
Use the following to answer questions 99-102:
99. Use the periodic table above to identify where the alkali metals are located.
Chapter 02 – Atoms, Molecules, and Ions
100. Use the periodic table above to locate where the alkaline earth metals are located.
101. Use the periodic table above to locate where the halogen elements are located.
102. Use the periodic table above to locate where the noble gases are located.
Chapter 02 – Atoms, Molecules, and Ions
103. The elements known as the halogens are useful as disinfectants. Of the following which
is NOT a halogen?
104. Which, if any, defines the term molecule?