Big Idea 1. All matter is composed of atoms.

This material will be covered very quickly in class. The intent of assigning this reading is to provide a brief review of relevant Honors Chemistry level material.

Memorization work required for this chapter.

Memorize the names, formulas, and charges of the polyatomic ions that are on the wall in the front of the chemistry classroom, plus chromate, CrO₄^2-.

Section 2.1: The Atomic Theory of Matter

o List the basic postulates of Dalton’s atomic theory.

Section 2.2: The Discovery of Atomic Structure

o Describe the key experiments that led to the discovery of electrons and to the nuclear model of the atom.

Section 2.3: The Modern View of Atomic Structure

o Describe the structure of the atom in terms of protons, neutrons, and electrons and express the relative electrical charges and masses of these subatomic particles.

o Use chemical symbols together with atomic number and mass number to express the sub atomic composition of isotopes.

Section 2.4: Atomic Weights

o Calculate the atomic weight of an element from the masses of individual atoms and knowledge of natural abundances.

Section 2.5: The Periodic Table

o Describe how elements are organized in the periodic table by atomic number and by similarities and chemical behavior, giving rise to periods and groups.

o Identify the locations of metals and nonmetals in the periodic table.

Section 2.6: Molecules and Molecular Compounds

o Distinguish between molecular substances and ionic substances in terms of their composition.

o Distinguish between empirical formulas and molecular formulas.

o Describe how molecular formulas and structural formulas are used to represent the compositions of molecules.

Section 2.7: Ions and Ionic Compounds

o Explain how ions are formed by the gain or loss of electrons and use the periodic table to predict the charges of common ions.

o Write the empirical formulas of ionic compounds, given the charges of their component ions.

Section 2.8: Naming Inorganic Compounds

o Write the name of an ionic compound given its chemical formula or write the chemical formula given its name.

o Name or write chemical formulas for binary inorganic compounds and for acids.

Section 2.9: Some Simple Organic Compounds

o Identify organic compounds and name simple alkanes and alcohols.