Chapter 9:
Discovering Elements
Practice Test
1.
What is a common physical property of nonmetals?
a.
malleable
b.
good electrical conductivity
d.
All of the above.
Hint
2.
What is a common physical property of metals?
a.
brittleness
b.
dull luster
c.
malleability
d.
poor electric conductivity
Hint
3.
Why might old paint be dangerous to children?
a.
Old paint may contain magnesium.
b.
Old paint may contain calcium.
c.
Old paint may contain mercury.
d.
Old paint may contain lead.
Hint
4.
An ounce of gold can be drawn into a wire more than 46 miles long. What term is used to describe this physical property of gold?
a.
luster
b.
conductivity
c.
ductility
d.
malleability
Hint
5.
What do diamond and graphite have in common?
a.
Both are forms of the element lead.
b.
Both are forms of the element carbon.
c.
ductility
d.
All of the above.
Hint
6.
Why is recycling aluminum a good idea?
a.
Recycling reduces the impact of mining on the environment.
b.
It is cheaper to recycle aluminum than to mine it.
c.
Recycling conserves aluminum resources.
d.
All of the above.
Hint
7.
What physical property is common to all metalloids?
a.
good thermal conductivity
b.
metallic luster
c.
malleability
d.
good electrical conductivity
Hint
8.
What metalloid is commonly from deposits from the beds of evaporated lakes?
a.
silicon
b.
silica
c.
boron
d.
fluorine
Hint
9.
What metal is an essential part of hemoglobin?
a.
mercury
b.
lead
c.
galena
d.
iron
Hint
10.
Why might gold make a good coinage metal?
a.
Gold is malleable.
b.
Gold is often uncombined in nature.
c.
Gold is rare.
d.
All of the above.
Hint
11.
What is the most common metal in Earth's crust?
a.
aluminum
b.
lead
c.
iron
d.
copper
Hint
12.
Ozone is a form of what nonmetallic element?
a.
hydrogen
b.
nitrogen
c.
carbon
d.
oxygen
Hint
13.
Nitrogen and hydrogen, both colorless and odorless gases, combine to form what commonly used strong-smelling compound?
a.
chlorine
b.
bleach
c.
ammonia
d.
ozone
Hint
14.
What abundant metalloid is commonly used in manufacturing integrated circuits for computer chips?
a.
silicon
b.
ceramics
c.
aluminum
d.
silica
Hint
15.
What nonmetal is useful in preventing tooth decay?
a.
chlorine
b.
ceramics
c.
aluminum
d.
All of the above.
Hint
