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Metalloids

CAVA Chem 302/303 S1 U3 L10/11 Metalloids

QuestionAnswer
The [...] are elements that share some properties of metals and some properties of nonmetals. The metalloids are elements that share some properties of metals and some properties of nonmetals.
Metalloids are sometimes called [...]-metals. Metalloids are sometimes called semimetals.
Metalloid means 'metal-[...]'. Metalloid means 'metal-like'.
Metalloids lie along the [...] line, but often a couple other elements that border the [...] line are included too. Metalloids lie along the BAt line, but often a couple other elements that border the BAt line are included too.
Under some conditions a specific [...] may show properties similar to those of a metal. Under different conditions, it may be more similar to one of the nonmetals. Under some conditions a specific metalloid may show properties similar to those of a metal. Under different conditions, it may be more similar to one of the nonmetals.
Silicon (Si) is a metalloid that is used in [...] chips. Silicon (Si) is a metalloid that is used in computer chips.
Properties of metalloids tend to fall in [...] the properties of metals and nonmetals.... just as you would expect. Properties of metalloids tend to fall in between the properties of metals and nonmetals.... just as you would expect.
Arsenic (As) is a metalloid that is [...], among other things. Arsenic (As) is a metalloid that is poisonous, among other things.
Antimony (Sb) is a [...] that may look like a metal but does not share the properties of a metal. Antimony (Sb) is a metalloid that may look like a metal but does not share the properties of a metal.
Some metalloids are [...]; they conduct electricity only under certain conditions. Some metalloids are semiconductors; they conduct electricity only under certain conditions.
[...] are used like little switches to control the flow of electricity in modern electronics. Semiconductors are used like little switches to control the flow of electricity in modern electronics.
Devices that use semiconductors instead of mechanical switches are called [...]-state devices, because they don't have moving parts (that usually makes them longer-lasting and more reliable). Devices that use semiconductors instead of mechanical switches are called solid-state devices, because they don't have moving parts (that usually makes them longer-lasting and more reliable).
Silicon (Si) is the [...] most abundant element in earth's crust. Silicon (Si) is the second most abundant element in earth's crust.
Silicon is a very good [...], so it is used in almost every modern electronic device. Silicon is a very good semiconductor, so it is used in almost every modern electronic device.
Sand is composed mostly of [...] and oxygen. Sand is composed mostly of silicon and oxygen.
Boron is a metalloid that was used to make [...] in ancient Egypt. Boron is a metalloid that was used to make mummies in ancient Egypt.
Created by: mr.shapard
 

 



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