Metalloids

Question 1

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 2

Which element is a metalloid?

Revolt · Accepted Answer

germanium (Ge)

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

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 5

Which groups on the periodic table contain metalloids?

Revolt · Accepted Answer

Groups 13–16

Question 6

Which metalloid has three valence electrons?

Revolt · Accepted Answer

boron

Question 7

Which statement describes a property that is unique to metalloids?

Revolt · Accepted Answer

Metalloids are semiconductive.

Question 8

Which element is a semiconductor?

Revolt · Accepted Answer

germanium

Question 9

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 10

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?

Revolt · Accepted Answer

only in the column for metalloids

Metalloids Answers

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