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

What do these two things have in common? 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 Standards Science 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.

Input diamond: 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.

Input fullerene: 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 & Modeling Properties 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 & Modeling Carbon 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.

Carbon Atoms and Bonding Input & Modeling Carbon Atoms and Bonding Carbon atoms and the bonds between them can be modeled in several ways.

Input & Modeling Forms of Pure Carbon At very high temperatures and pressures, carbon atoms can form diamonds.

Input & Modeling Forms 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 & Modeling Forms 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 & Modeling Forms 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.

Guided Practice Independent Practice Answer #1-4 Finish the worksheet. Fullerene Diamond Graphite Nanotube

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.