Chapter 3 - Elements and the Periodic Table

Section 1 - Introduction to Atoms

• Describe the structure of an atom

• Describe elements in terms of their atoms

• Explain how models are useful for understanding atoms

Section 2 - Organizing the Elements

• Explain how Mendeleev discovered the pattern that led to the periodic table

• Tell what data about elements are found in the periodic table

• Describe how the organization of the periodic table is used to predict the properties of elements

Section 3 - Metals

• List the physical properties of metals

• Explain how the reactivity of metals changes across the periodic table

• Explain how the elements that follow uranium are produced

Section 4 - Nonmetals and Metalloids

• Describe the properties of nonmetals

• Tell how metalloids are useful

Chapter 1 - Introduction to Matter

Section 1 - Describing Matter

• Identify the properties used to describe matter

• Define elements and explain how they relate to compounds

• Describe the properties of a mixture

Section 2 - Measuring Matter

• Differentiate between weight and mass

• Identify the units used to express the amount of space occupied by matter

• Describe how the density of a material is determined

Section 3 - Changes in Matter

• Describe what a physical change is

• Describe what a chemical change is

• Explain how changes in matter are related to changes in energy