Chapter 8:
Periodic Properties of the Elements
Practice Test
1.
The elements in Groups 1, 2, and 13-17 are called the __________.
a.
noble gases
b.
alkali metals
c.
transition elements
d.
main group elements
Hint
2.
Among the ions F
-
, Li
+
, Cs
+
, and At
-
, which would you expect to have the smallest ionic radius?
a.
F
-
b.
At
-
c.
Cs
+
d.
Li
+
Hint
3.
This transition element is used in many barometers and thermometers.
a.
titanium
b.
copper
c.
mercury
d.
iron
Hint
4.
This noble gas is used to carry scientific instruments into the upper atmosphere.
a.
krypton
b.
xenon
c.
argon
d.
helium
Hint
5.
This Group 13 metal is obtained from its ore in a process that consumes about 5% of the electricity produced in the U.S.
a.
gallium
b.
indium
c.
thallium
d.
aluminum
Hint
6.
This transition element is commonly used as a coating on iron and steel to prevent corrosion.
a.
gold
b.
scandium
c.
zinc
d.
niobium
Hint
7.
This alkali-metal compound is used in drain cleaners and in the digestion of wood pulp.
a.
sodium carbonate
b.
sodium hydroxide
c.
sodium chloride
d.
sodium nitrate
Hint
8.
In general, atomic size ___________ from left to right across a period.
a.
remains the same
b.
increases
c.
decreases
d.
increases, then decreases
Hint
9.
Metallic sodium is obtained from NaCl through _________.
a.
freezing
b.
condensation
c.
thermal decomposition
d.
electrolysis
Hint
10.
To prevent unintended reactions, sodium and potassium are kept in _____________.
a.
water
b.
ice
c.
oil
d.
air
Hint
11.
Which elements would you expect to be the most reactive alkaline earth metal?
a.
lithium
b.
beryllium
c.
francium
d.
radium
Hint
12.
This nonmetal is used to increase the hardness of steel.
a.
chlorine
b.
oxygen
c.
carbon
d.
nitrogen
Hint
13.
These groups contain metals, nonmetals, and metalloids.
a.
13-18
b.
17, 18
c.
14 , 15
d.
1, 2
Hint
14.
This Group 14 element is used in making ceramics, glass, and cement.
a.
silicon
b.
lead
c.
carbon
d.
tin
Hint
15.
Many transition elements have multiple positive oxidation states because their atoms can lose some of their _______________.
a.
d electrons
b.
p electrons
c.
nuclear protons
d.
s electrons
Hint
16.
These elements are soft, silvery metals and good conductors of heat and electricity.
a.
halogens
b.
metalloids
c.
transition elements
d.
alkali metals
Hint
17.
A radioactive isotope of this alkaline-earth metal with a mass number of 90 can replace calcium in the hydroxyapatite of bones.
a.
magnesium
b.
barium
c.
beryllium
d.
strontium
Hint
18.
In general, atomic size ___________ from top to bottom within a Group.
a.
increases
b.
remains the same
c.
increases, then decreases
d.
decreases
Hint
19.
_______________ is a measure of the size of an atom.
a.
Nuclear charge
b.
Oxidation number
c.
Atomic radius
d.
Number of electrons
Hint
20.
These two Group 15 elements are important components of many fertilizers.
a.
bismuth and phosphorus
b.
nitrogen and arsenic
c.
nitrogen and phosphorus
d.
antimony and arsenic
Hint
