Metalloids

Question 1

The design of a new computer processor requires that electric current be carefully controlled. Why might an engineer want to use a metalloid when designing a new computer processor?

Revolt · Accepted Answer

Metalloids are semiconductors.

Question 2

Which metalloid has three valence electrons?

Revolt · Accepted Answer

boron

Question 3

Solar panels convert light energy from sunlight into electrical energy. What material is most likely used in solar panels, and why?

Revolt · Accepted Answer

A metalloid is used because it is a semiconductor and can become more conductive when more light shines on it.

Question 4

How does the number of valence electrons in atoms of metalloids explain why metalloids are semiconductors?

Revolt · Accepted Answer

They have three to six valence electrons, so they can lose or gain electrons.

Question 5

Which statement describes a property that is unique to metalloids?

Revolt · Accepted Answer

Metalloids are semiconductive.

Question 6

Which element is a semiconductor?

Revolt · Accepted Answer

germanium

Question 7

Which groups on the periodic table contain metalloids?

Revolt · Accepted Answer

Groups 13–16

Question 8

Which metalloid has five valence electrons in the fourth electron shell?

Revolt · Accepted Answer

arsenic

Question 9

Which lists the elements in order from least conductive to most conductive?

Revolt · Accepted Answer

nitrogen (N), antimony (Sb), bismuth (Bi)

Question 10

Which property do metalloids share with nonmetals?

Revolt · Accepted Answer

Both can react to form acidic compounds.

Metalloids Answers

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