Test Bank for Human Biology 12th
Edition Mader
Chapter 02 Chemistry of Life
Multiple Choice Questions
1. The smallest unit of an element that still retains the chemical and physical properties of that element
is called
A. an
isotope.
B. a
nucleus.
C. an
atom.
D. a molecular
bond.
E. a
neutrino.
2. In an atom, the number of protons always equals the number
A. of
electrons.
B. of
neutrons.
C. of neutron and
protons.
D. of
quarks.
E. of
neutrinos.
3. Examine the section of the periodic table in Figure 2.1. Which element will behave similarly to C?
A. C
a
B. S
C. A
r
D. S
i
E. M
g
, Test Bank for Human Biology 12th
Edition Mader
4. How many elements occur naturally?
A. 11
2
B. 9
2
C. 6
4
D. 3
2
E. 6
5. The atomic number of an atom is determined by the number of
A. proton
s.
B. neutron
s.
C. electron
s.
D. protons and
neutrons.
E. protons and
electrons.
True / False Questions
6. An element cannot be broken down by chemical means.
True False
Multiple Choice Questions
7. Why is He over Ne in the periodic table? (Refer to Figure 2.1)
A. They both have the same atomic
mass.
B. They both have the same number of electrons in their
outermost orbital.
C. They both have a full outermost
orbital.
D. They both have the same atomic
number.
E. They both have the same number of protons in
their nuclei.
, Test Bank for Human Biology 12th
Edition Mader
8. Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?
A. 4
B. 5
C. 9
D. 1
3
9. What is the symbol for sodium?
A. N
a
B. S
C. S
o
D. N
E. D
m
10. An element has its outermost orbital full and contains more than 2 electrons. Which element is this?
A. H
e
B. N
e
C. C
D. N
E. O
11. Isotopes of an element differ due to the number of
A. proton
s.
B. neutron
s.
C. electron
s.
D. both protons and
electrons.
E. neutrino
s.
, Test Bank for Human Biology 12th
Edition Mader
12. Carbon dating is a common method employed in dating certain kinds of fossils. It is based upon the
radioactive decay of an isotope of carbon (C14). Referring to the atomic number of carbon attained
from figure 2.1, how many neutrons does C14 have?
A. 2
B. 4
C. 8
D. 1
2
E. 1
4
13. What is iodine 131, used in medicine to produce various images of organs and tissues, called?
A. A
mixture
B. A
tracer
C. An
emulsion
D. A
colloid
E. A
sensor
True / False Questions
14. Radiation can produce both positive and negative effects for humans.
True False
Multiple Choice Questions
Edition Mader
Chapter 02 Chemistry of Life
Multiple Choice Questions
1. The smallest unit of an element that still retains the chemical and physical properties of that element
is called
A. an
isotope.
B. a
nucleus.
C. an
atom.
D. a molecular
bond.
E. a
neutrino.
2. In an atom, the number of protons always equals the number
A. of
electrons.
B. of
neutrons.
C. of neutron and
protons.
D. of
quarks.
E. of
neutrinos.
3. Examine the section of the periodic table in Figure 2.1. Which element will behave similarly to C?
A. C
a
B. S
C. A
r
D. S
i
E. M
g
, Test Bank for Human Biology 12th
Edition Mader
4. How many elements occur naturally?
A. 11
2
B. 9
2
C. 6
4
D. 3
2
E. 6
5. The atomic number of an atom is determined by the number of
A. proton
s.
B. neutron
s.
C. electron
s.
D. protons and
neutrons.
E. protons and
electrons.
True / False Questions
6. An element cannot be broken down by chemical means.
True False
Multiple Choice Questions
7. Why is He over Ne in the periodic table? (Refer to Figure 2.1)
A. They both have the same atomic
mass.
B. They both have the same number of electrons in their
outermost orbital.
C. They both have a full outermost
orbital.
D. They both have the same atomic
number.
E. They both have the same number of protons in
their nuclei.
, Test Bank for Human Biology 12th
Edition Mader
8. Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?
A. 4
B. 5
C. 9
D. 1
3
9. What is the symbol for sodium?
A. N
a
B. S
C. S
o
D. N
E. D
m
10. An element has its outermost orbital full and contains more than 2 electrons. Which element is this?
A. H
e
B. N
e
C. C
D. N
E. O
11. Isotopes of an element differ due to the number of
A. proton
s.
B. neutron
s.
C. electron
s.
D. both protons and
electrons.
E. neutrino
s.
, Test Bank for Human Biology 12th
Edition Mader
12. Carbon dating is a common method employed in dating certain kinds of fossils. It is based upon the
radioactive decay of an isotope of carbon (C14). Referring to the atomic number of carbon attained
from figure 2.1, how many neutrons does C14 have?
A. 2
B. 4
C. 8
D. 1
2
E. 1
4
13. What is iodine 131, used in medicine to produce various images of organs and tissues, called?
A. A
mixture
B. A
tracer
C. An
emulsion
D. A
colloid
E. A
sensor
True / False Questions
14. Radiation can produce both positive and negative effects for humans.
True False
Multiple Choice Questions
