Chemistry: Matter and Change

Section 4: Mettalic Bonds and the Properties of Metals

Self Check Quizzes

1
If tungsten were not available for use in a lightbulb filament, which of the elements in the table would be the best choice for a substitute?

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A)aluminum
B)barium
C)copper
D)lithium
2
Which of the following is a correct description of a metallic property?
A)Metals are brittle.
B)Metals have a dull appearance.
C)Metals gain electrons to form anions.
D)Metals are malleable.
3
Which of the following metallic properties is best explained by the "sea of electrons" model of metals?

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A)density
B)electrical conductivity
C)atomic mass
D)ionic charge
4
Sterling silver is known as a substitutional alloy because ________.

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A)copper atoms replace some of the silver atoms in the metallic crystal.
B)smaller copper atoms fill in holes in the silver metallic crystal
C)copper is less dense than silver
D)copper is less expensive than silver
5
Electrons in the "electron sea" of a metal are known as ________ electrons.
A)valence
B)delocalized
C)negative
D)metallic
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