8-1: Properties of CarbonWhy does carbon play a central role in the chemistry of living organisms?

Anticipatory Set

What do these two things have in common?

They are both made of carbon atoms. The only difference is the

arrangement of the atoms.

California StandardsScience Standard 8.6.a: Students know that

carbon, because of its ability to combine in many ways with itself and other elements, has a central role in the chemistry of living organisms.

Inputdiamond: a crystalline form of carbon in

which each carbon atom is bonded strongly to four other carbon atoms.

graphite: a form of carbon in which each carbon atom is bonded tightly to three other carbon atoms in flat layers.

Inputfullerene: a form of carbon that consists of

atoms arranged in the shape of a hollow sphere.

nanotube: a form of carbon that consists of atoms in the form of a long, hollow cylinder.

Input & ModelingProperties of Carbon

Carbon plays a central role in the chemistry of living organisms because of its unique ability to combine in many ways with itself and other elements.

Input & ModelingCarbon Atoms & Bonding

With four valence electrons, each carbon atom is able to form four bonds. Carbon atoms can form straight chains, branched chains, and rings.

Input & ModelingCarbon Atoms and Bonding

Carbon atoms and the bonds between them can be modeled in several ways.

Input & ModelingForms of Pure Carbon

At very high temperatures and pressures, carbon atoms can form diamonds.

Input & ModelingForms of Pure Carbon

Another form of the element

carbon is graphite. In

graphite, each carbon

atom is bonded tightly to

three other carbon atoms

in flat layers.

Input & ModelingForms of Pure Carbon

In 1985, scientists made a new form of carbon, a fullerene. It consists of carbon atoms arranged in the shape of

a hollow

sphere.

Input & ModelingForms of Pure Carbon

In 1991, scientists made

another form of carbon,

a nanotube. It consists

of carbon atoms

arranged in the shape

of a long, hollow tube.

Answer #1-4Guided Practice

Independent PracticeFinish the worksheet.

HOMEWORK CONNECTION Complete the Section 8-1 Review & Reinforce

Write a detailed SUMMARY of the section and complete the UNANSWERED QUESTIONS section of your notes.

Choose two of the remaining Depth & Complexity ICONS in your notes and explain how they relate to this section.