Periodic Table Practice Test
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. How did chemists change Mendeleev’s periodic table in the early 1900s?
a. They included chemical properties such as bonding power.
b. They included physical properties such as melting point and density.
c. They used atomic mass instead of atomic number to organize the elements.
d. They used atomic number instead of atomic mass to organize the elements.
____
2. The elements in a column of the periodic table
a. have similar properties.
b. are in the same period.
c. have the same atomic mass.
d. have very similar chemical symbols.
____
3. What information in the periodic table indicates the number of protons in an atom?
a. the position of the element in its column
b. the element’s chemical symbol
c. the element’s atomic number
d. the element’s atomic mass
____
4. Most metals are NOT
a. ductile.
b. good conductors of heat and electricity.
c. liquid at room temperature.
d. malleable.
____
5. Which group contains the most elements?
a. semimetals
b. nonmetals
c. metals
d. transition elements
____
6. In the periodic table, the most reactive metals are found
a. in Group 1, the first column on the left.
b. in Period 1, the first row across the top.
c. in Groups 13 through 16 in the center.
d. in Periods 6 and 7 at the bottom.
____
7. The elements that do not ordinarily form compounds are
a. elements in the carbon family.
b. metals.
c. halogens.
d. inert gases.
____
8. How many protons does an atom with an atomic number of 23 and a mass number of 51 have?
a. 23
c. 51
b. 28
d. 74
____
9. An atom has no overall charge if it contains equal numbers of
a. electrons and protons.
c. neutrons and electrons.
b. neutrons and protons.
d. None of the above
____ 10. Which statement about neutrons is true?
a. Neutrons have a mass of 1 amu.
b. Neutrons circle the nucleus of an atom.
c. Neutrons are the only particles that make up the nucleus.
d. Neutrons have a negative charge.
____ 11. Which of the following determines the identity of an element?
a. atomic number
c. atomic mass
b. mass number
d. overall charge
____ 12. Isotopes exist because atoms of the same element can have different numbers of
a. protons.
c. electrons.
b. neutrons.
d. None of the above
____ 13. An atom of gold with 79 protons, 79 electrons, and 118 neutrons would have a mass number of
a. 39.
c. 197.
b. 158.
d. 276.
____ 14. Which of the following has the LEAST mass?
a. nucleus
c. neutron
b. proton
d. electron
____ 15. The current model of the atom suggests that
a. electron clouds surround the nucleus.
b. proton clouds surround the nucleus.
c. electrons travel in definite paths around the nucleus.
d. the exact path of a moving electron can be predicted.
____ 16. Atoms are composed of
a. electrons and neutrons.
b. protons and neutrons.
c. electrons, protons, and neutrons.
d. atomic mass units.
____ 17. What particles make up a nucleus?
a. electrons and neutrons
b. neutrons
c. protons and neutrons
d. electrons, protons, and neutrons
____ 18. Which of the following statements describes isotopes?
a. Isotopes are atoms of the same element.
b. Isotopes have the same number of protons but have different numbers of neutrons.
c. Isotopes have the same atomic number but have different mass numbers.
d. all of the above
____ 19. Isotopes have different
a. atomic numbers.
b. mass numbers.
c. chemical properties.
d. charges.
____ 20. A lithium atom has 3 protons, 3 neutrons, and 3 electrons. Which of the following sets of particles represents
an isotope of this atom?
a. 4 protons, 3 neutrons, and 4 electrons
c. 3 protons, 3 neutrons, and 2 electrons
b. 3 protons, 4 neutrons, and 3 electrons
d. 4 protons, 4 neutrons, and 4 electrons
Examine the illustration below and answer the questions that follow.
____ 21. This is an illustration of an atom of
a. hydrogen-2.
b. hydrogen-3.
c. helium-3.
d. helium-4.
____ 22. What is this atom's atomic number?
a. 1
b. 2
c. 3
d. 4
Periodic Table Practice Test
Answer Section
MULTIPLE CHOICE
1. ANS:
OBJ:
STA:
2. ANS:
OBJ:
STA:
3. ANS:
OBJ:
STA:
4. ANS:
OBJ:
BLM:
5. ANS:
OBJ:
BLM:
6. ANS:
OBJ:
STA:
7. ANS:
OBJ:
STA:
8. ANS:
STA:
9. ANS:
STA:
10. ANS:
11. ANS:
STA:
12. ANS:
STA:
13. ANS:
STA:
14. ANS:
15. ANS:
16. ANS:
17. ANS:
18. ANS:
19. ANS:
20. ANS:
21. ANS:
22. ANS:
D
PTS: 1
DIF: L2
CaPS.4.2.1 Explain how Mendeleev discovered the pattern that led to the periodic table.
S 8.7.b
BLM: comprehension
A
PTS: 1
DIF: L1
CaPS.4.2.2 Describe how elements are organized in the modern periodic table.
S 8.7.a
BLM: knowledge
C
PTS: 1
DIF: L2
CaPS.4.2.2 Describe how elements are organized in the modern periodic table.
S 8.3.a
BLM: comprehension
C
PTS: 1
DIF: L2
CaPS.4.3.1 List the physical properties of metals.
STA: S 8.7.c
comprehension
C
PTS: 1
DIF: L2
CaPS.4.3.1 List the physical properties of metals.
STA: S 8.7.a | S 8.7.c
application
A
PTS: 1
DIF: L2
CaPS.4.3.2 Explain how the reactivity of metals changes across the periodic table.
S 8.3.a | S 8.7.a
BLM: comprehension
D
PTS: 1
DIF: L2
CaPS.4.4.1 Describe the properties of nonmetals and inert gases.
S 8.3.f | S 8.7.a
BLM: comprehension
A
PTS: 1
DIF: I
OBJ: 12-2.2
7b
A
PTS: 1
DIF: I
OBJ: 12-2.2
3a
A
PTS: 1
DIF: I
OBJ: 12-2.1
A
PTS: 1
DIF: I
OBJ: 12-2.2
7b
B
PTS: 1
DIF: I
OBJ: 12-2.2
7b
C
PTS: 1
DIF: I
OBJ: 12-2.2
3
D
PTS: 1
DIF: I
OBJ: 12-2.1
A
PTS: 1
DIF: I
OBJ: 12-1.2
C
PTS: 1
DIF: I
OBJ: 12-2.1
C
PTS: 1
DIF: I
OBJ: 12-2.1
D
PTS: 1
DIF: I
OBJ: 12-2.2
B
PTS: 1
DIF: I
OBJ: 12-2.2
B
PTS: 1
DIF: II
OBJ: 12-2.2
C
PTS: 1
DIF: II
OBJ: 12-2.2
B
PTS: 1
DIF: II
OBJ: 12-2.2