Chemistry Concepts and Applications

Section 2: Using the Periodic Table

Self Check Quizzes

1
In a conductor such as silver, valence electrons are free to move to produce __________.
A)an electric current
B)electric potential
C)copper atoms
D)nuclei
2
In boron-doped silicon, electrons are said to move into and out of __________.
A)diodes
B)holes
C)inner energy levels
D)nuclei
3
Which element is NOT suitable to dope silicon to produce an n-type semiconductor?
A)carbon
B)phosphorus
C)arsenic
D)antimony
4
A single n-type and a single p-type semiconductor may be combined to form __________.
A)a diode
B)a transistor
C)a cathode-ray tube
D)a vacuum tube
5
Most metals conduct electric current because their __________ are free to move.

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A)nuclei
B)valence electrons
C)inner electrons
D)protons
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