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Metalloids Answers

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Which property do metalloids share with nonmetals?

A
Both are gases at room temperature.
B
Both can react to form acidic compounds.
C
Both are very poor electrical conductors.
D
Both can be pounded into thin sheets.
2
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Which lists the elements in order from least conductive to most conductive?

A
nitrogen (N), antimony (Sb), bismuth (Bi)
B
nitrogen (N), bismuth (Bi), antimony (Sb)
C
antimony (Sb), nitrogen (N), bismuth (Bi)
D
bismuth (Bi), antimony (Sb), nitrogen (N)
3

Which metalloid has three valence electrons?

A
boron
B
arsenic
C
silicon
D
lithium
4

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

A
They have one or two valence electrons, so they cannot lose electrons easily.
B
They have one or two valence electrons, so they can lose or gain electrons.
C
They have three to six valence electrons, so they cannot lose electrons easily.
D
They have three to six valence electrons, so they can lose or gain electrons.
5

The table shows columns that Franklin uses to organize his notes on the properties of elements. His notes state that some elements are widely used in semiconductors.Where should Franklin place this property in his table?

Question illustration
A
only in the column for metalloids
B
only in the column for nonmetals
C
in the columns for metalloids and for nonmetals
D
in the columns for metals and for metalloids
6

Based on their locations on the periodic table, which best compares the properties of the metalloids arsenic (As) and antimony (Sb)?

A
Arsenic has a more metallic behavior than antimony because arsenic’s atoms have fewer electron shells.
B
Arsenic has a more metallic behavior than antimony because arsenic’s atoms have more electron shells.
C
Arsenic has a more nonmetallic behavior than antimony because arsenic’s atoms have more electron shells.
D
Arsenic has a more nonmetallic behavior than antimony because arsenic’s atoms have fewer electron shells.
7

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?

A
Metalloids are amphoteric.
B
Metalloids are semiconductors.
C
Metalloids are brittle.
D
Metalloids are shiny.
8

Which statement describes a property that is unique to metalloids?

A
Metalloids are shiny.
B
Metalloids are semiconductive.
C
Metalloids are solid.
D
Metalloids are brittle.
9

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

A
antimony
B
germanium
C
selenium
D
arsenic
10

Which element is a semiconductor?

A
germanium
B
aluminum
C
tin
D
iodine

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