Metalloids

Question 1

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 2

Which metalloid has three valence electrons?

Revolt · Accepted Answer

boron

Question 3

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

Revolt · Accepted Answer

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

Question 4

Which statement describes a property that is unique to metalloids?

Revolt · Accepted Answer

Metalloids are semiconductive.

Question 5

Which element is a semiconductor?

Revolt · Accepted Answer

germanium

Question 6

Which element is a metalloid?

Revolt · Accepted Answer

germanium (Ge)

Question 7

For metalloids on the periodic table, how do the group number and the period number relate?

Revolt · Accepted Answer

The lower the group number, the lower the period numbers, so the metalloids are found in a diagonal moving down from left to right.

Question 8

The table shows columns that Brenda uses for her notes on the properties of elements. Her notes state that some elements can react to form basic compounds.Where should Brenda place this property in her table?

Revolt · Accepted Answer

in the columns for metals and for metalloids

Question 9

Which element in period 3 on the periodic table is a metalloid?

Revolt · Accepted Answer

silicon (Si)

Metalloids Answers

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