8) A neutral atom of the isotope phosphorus-32 contains 15 protons, 17 neutrons, and 15
electrons.
9) Tritium is an isotope of carbon.
10) Two isotopes of the same element differ only in the number of neutrons found in the nucleus.
11) The oxygen-17 isotope has more protons than neutrons in its nucleus.
12) The oxygen-17 (-2) isotopic anion contains more electrons than either protons or neutrons.
13) Group IIA of the periodic table contains elements that are gaseous non-metals.
14) Group VIIIA of the periodic table contains elements that are gaseous non-metals.
15) The periodic table contains more elements that are classified as non-metals than elements of
any other type.
16) Magnesium is the element that appears in the second group of the second period.
17) Radium is the only noble gas that is radioactive.
18) Barium is an alkali earth metal.
19) Krypton is a noble gas.
20) Sulfur belongs to the chalcogen family.
21) Platinum is used in the catalytic converters of the cars.
22) Lanthanides are rare earth elements.
23) Earth’s gravitational force is incapable of keeping the atmospheric helium from escaping into
space.
24) Noble gases occupy Group VII in the periodic table.
25) Mercury is the only metal that is a liquid at room temperature.
26) Iodine is the only non-metal that is a solid at room temperature.
27) The most stable isotope of oxygen has 8 neutrons.
28) It is easier to remove an electron from the outside shell of a K atom than from the outside
shell of a Na atom.
29) One needs to supply energy from an outside source to form a cation from a neutral atom.
3.3 Short Answer Questions
Write the atomic symbols for the following neutral isotopes.
1) lead-207
2) cobalt-60
3) uranium-235
4) strontium-90
5) Why are the elements in Group VIIIA called the “noble gases”?
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3.4 Matching Questions
Match the scientist in the left column with his contribution to the chemistry field that appears in
the right column.
A) Rationalized that matter is neither created nor destroyed
B) Proved that matter is always conserved
C) Discovered (with Thomson) the proton
D) Discovered the electron
E) Believed that the matter could be infinitely subdivided
F) Postulated that matter is made up of tiny atoms
G) Constructed the periodic table
H) Demonstrated the existence of the neutron
1) Antoine Lavoisier
Section: Section 3.1
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
2) Democritus
Section: Section 3.1
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
3) Aristotle
Section: Section 3.1
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
4) Dmitri Mendeleev
Section: Section 3.5
Learning Outcome: 3.8 Explain Mendeleev’s discovery.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
5) John Dalton
Section: Section 3.1
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
6) J.J. Thomson
Section: Section 3.2
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
7) James Chadwick
Section: Section 3.2
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
8) E. Goldstein
Section: Section 3.2
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
22
Match every element in the first column with its symbol in the second column.
A) Na
B) Co
C) Po
D) Cu
E) Mn
F) Ni
G) Fe
H) N
I) Si
J) K
K) S
L) Au
M) Ag
N) Rn
O) Ra
P) P
Q) Mg
9) Sulfur
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
10) Potassium
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
11) Manganese
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
12) Magnesium
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
13) Radium
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
14) Radon
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
23
15) Nitrogen
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
16) Nickel
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
17) Polonium
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
18) Iron
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
19) Sodium
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
20) Silver
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
21) Silicon
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
22) Phosphorus
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
23) Gold
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
24) Copper
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
25) Cobalt
Section: Section 3.4
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
Match every element in the first column with an occurrence in the second column.
A) Plating car bumpers
B) Computer Chips
C) Bicycle Frames
D) Antacids
E) Diamonds
F) Thermometers
G) Steel
H) Soda cans
26) Silicon
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
27) Chromium
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
28) Magnesium
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
29) Carbon
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
30) Iron
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
31) Mercury
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
32) Titanium
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
33) Aluminum
Section: Section 3.6
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
25
Classify each of the elements in the first column with a family name in the second column.
A) Actinide
B) Gaseous Halogen
C) Liquid Metal
D) Gaseous Chalcogen
E) Lanthanide
F) Solid Chalcogen
G) Alkali metal
H) Noble Gas
I) Metalloid
J) Liquid Halogen
K) Solid Halogen
L) Alkaline earth metal
M) Transition element
34) Oxygen
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
35) Cerium
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
36) Potassium
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
37) Calcium
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
38) Tellurium
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
39) Iodine
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
26
40) Xenon
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
41) Uranium
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
42) Lithium
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
43) Mercury
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
44) Silver
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
45) Bromine
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
46) Strontium
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
47) Silicon
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
48) Krypton
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
27
49) Chlorine
Section: Section 3.6
Learning Outcome: 3.9 Identify groups, periods, metals, and nonmetals in the periodic table.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
28
Match each statement from the first column with the correct species in the second column.
A) 3H
B) 4He+
C) 30P
D) 35C11-
E) 27A1
F) 1H+
G) 12C
H) 23Na+
50) Has a mass number equal to 27
Section: Section 3.7
Learning Outcome: 3.5 Explain what the atomic number and the mass number tell you about an
atom.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
51) Has ten electrons
Section: Section 3.7
Learning Outcome: 3.10a Explain what cations and anions are and how to form them. I) 7Be
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
52) Has a nuclear charge of +15
Section: Section 3.7
Learning Outcome: 3.5 Explain what the atomic number and the mass number tell you about an
atom.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
53) Has an equal number of protons, neutrons, and electrons
Section: Section 3.7
Learning Outcome: 3.6 Explain the meaning of an atom’s atomic mass and mass number.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
54) Has no neutrons
Section: Section 3.7
Learning Outcome: 3.10a Explain what cations and anions are and how to form them.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
55) Has a number of electrons equal to that of neutrons, but different than that of protons
Section: Section 3.7
Learning Outcome: 3.10a Explain what cations and anions are and how to form them.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
56) Has no electrons
Section: Section 3.7
Learning Outcome: 3.10a Explain what cations and anions are and how to form them.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
57) Has a number of neutrons (other than zero) which is less than the number of protons
Section: Section 3.7
Learning Outcome: 3.5 Explain what the atomic number and the mass number tell you about an
atom.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
58) Has a number of neutrons twice that of protons
Section: Section 3.7
Learning Outcome: 3.5 Explain what the atomic number and the mass number tell you about an
atom.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.
59) Has a number of neutrons twice that of electrons
Section: Section 3.7
Learning Outcome: 3.10a Explain what cations and anions are and how to form them.
Global Obj: G2 Demonstrate the ability to think critically and employ critical thinking skills.