Chapter 8:
Periodic Properties of the Elements
Practice Test
1.
This alkali-metal compound is used in drain cleaners and in the digestion of wood pulp.
a.
sodium carbonate
b.
sodium nitrate
c.
sodium chloride
d.
sodium hydroxide
Hint
2.
Ozone is an allotrope of this element.
a.
neon
b.
oxygen
c.
lead
d.
osmium
Hint
3.
To prevent unintended reactions, sodium and potassium are kept in _____________.
a.
oil
b.
air
c.
ice
d.
water
Hint
4.
This useful transition element is the major component in steel.
a.
tungsten
b.
nickel
c.
chromium
d.
iron
Hint
5.
Among the elements fluorine, lithium, cesium, and astatine, which would you expect to have the smallest atomic radius?
a.
cesium
b.
lithium
c.
fluorine
d.
astatine
Hint
6.
These groups contain metals, nonmetals, and metalloids.
a.
14 , 15
b.
1, 2
c.
13-18
d.
17, 18
Hint
7.
This transition element is used in many barometers and thermometers.
a.
mercury
b.
titanium
c.
copper
d.
iron
Hint
8.
Among the ions F
-
, Li
+
, Cs
+
, and At
-
, which would you expect to have the smallest ionic radius?
a.
At
-
b.
Cs
+
c.
F
-
d.
Li
+
Hint
9.
This transition element is commonly used as a coating on iron and steel to prevent corrosion.
a.
niobium
b.
scandium
c.
gold
d.
zinc
Hint
10.
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.
aluminum
b.
thallium
c.
indium
d.
gallium
Hint
11.
These two Group 15 elements are important components of many fertilizers.
a.
nitrogen and arsenic
b.
nitrogen and phosphorus
c.
bismuth and phosphorus
d.
antimony and arsenic
Hint
12.
This halogen is absorbed readily by the thyroid gland.
a.
bromine
b.
iodine
c.
chlorine
d.
fluorine
Hint
13.
A radioactive isotope of this alkaline-earth metal with a mass number of 90 can replace calcium in the hydroxyapatite of bones.
a.
strontium
b.
magnesium
c.
beryllium
d.
barium
Hint
14.
This nonmetal is used to increase the hardness of steel.
a.
oxygen
b.
nitrogen
c.
chlorine
d.
carbon
Hint
15.
Metallic sodium is obtained from NaCl through _________.
a.
thermal decomposition
b.
freezing
c.
condensation
d.
electrolysis
Hint
16.
These elements are soft, silvery metals and good conductors of heat and electricity.
a.
alkali metals
b.
halogens
c.
metalloids
d.
transition elements
Hint
17.
Many towns and cities add these compounds to their water supplies.
a.
fluorides
b.
hydrides
c.
carbides
d.
sulfides
Hint
18.
In general, atomic size ___________ from left to right across a period.
a.
remains the same
b.
decreases
c.
increases, then decreases
d.
increases
Hint
19.
This Group 14 element is used in making ceramics, glass, and cement.
a.
lead
b.
tin
c.
silicon
d.
carbon
Hint
20.
_______________ is a measure of the size of an atom.
a.
Oxidation number
b.
Nuclear charge
c.
Number of electrons
d.
Atomic radius
Hint
