Carbon and Its Allotropes

What is the atomic number of carbon?

• 6

• 5

• 8

• 7

Name one physical property of carbon.

• Gas

• Solid

• Transparent

• Liquid

What are the two most common allotropes of carbon?

• coal and buckminsterfullerene

• diamond and graphite

• charcoal and amorphous carbon

• soot and carbon fiber

Which allotrope of carbon is used in pencil leads?

• Graphite

• Silicon

• Charcoal

• Diamond

What is the chemical formula for carbon dioxide?

• OC2

• CO

• C2O

• CO2

What is the electron configuration of carbon?

• 1s2 2s1 2p3

• 1s2 2s3 2p1

• 1s2 2s2 2p2

• 1s2 2s3 2p2

What is the structure of diamond?

• Tetrahedral

• Dodecahedral

• Octahedral

• Cubic

What are some common uses of graphite?

• Pencils, lubricants, batteries, and as a moderator in nuclear reactors

• Cooking utensils, Musical instruments, Construction materials

What are some common uses of diamonds?

• Cooking utensils, Electronics, Transportation

• Jewelry, industrial cutting and drilling tools, scientific applications

What is amorphous carbon?

• Carbon without a defined crystal structure.

• Carbon with a defined crystal structure.

• Carbon in gaseous state.

• Carbon in liquid form.