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Insulators are generally made from lightweight materials that have small atoms.

A) True
B) False

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True

Germanium and ____ are the most common semiconductor materials used in the electronics field.


A) gold
B) silver
C) silicon
D) iron

E) C) and D)
F) B) and D)

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Solid-state devices, such as diodes and transistors, are often called ____________________.

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What is a P-type material?

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When pure semiconductor material is mixe...

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The diode is often called a PN junction.

A) True
B) False

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True

What are conductors?

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Conductors are materials that provide easy paths for the flow of electrons. Conductors are generally made from materials that have large, heavy atoms. For this reason, most conductors are metals. The best electrical conductors are silver, copper, and aluminum.

When a semiconductor material is mixed with an impurity that has ____ valence electrons, such as arsenic or antimony, the lattice structure has an excess of electrons.


A) two
B) three
C) five
D) seven

E) None of the above
F) A) and B)

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When semiconductor materials are refined into a pure form, the molecules arrange themselves into a crystal structure with a definite pattern. This type of pattern is called a(n) ____________________ structure.

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