Chapter 9Physics A First Course Matter and Energy

Matter and EnergyPhysical Properties of

Matter9.1 Atomic Structure9.2 Electrons and the Periodic Table9.3 Quantum Theory of the Atom

9A Investigation: The Atom

Key Question:

How is an atom organized?

*Students read text section 9.1AFTER Investigation 9A

9A Investigation Topics Build model atoms. Use the periodic table. Compare atomic structure to the layout of the periodic

table.

Chapter 9.1 Objectives and Vocabulary

atomic theory proton electron neutron charge nucleus electromagnetic force strong nuclear force isotopes atomic number mass number

Name the subatomic particles that make up an atom and describe their locations.

Describe the forces that hold atoms together.

Identify the number of particles in an atomic nucleus.

Chapter 9.2 Objectives and Vocabulary periodic talbe

period group metal nonmetals metalloids energy level valance electrons chemical bond noble gases

Use the periodic table to obtain information about the elements.

Explain the relationship between an element's placement on the periodic table and its chemical properties.

Understand a simple model of electron arrangement.

9B Investigation: Energy and the QuantumKey Question:

How does an atom absorb and emit light energy?

*Students read text section 9.3

AFTER Investigation 9B

9B Investigation Topics

Build and model atoms. Compare absorption and emission in atoms.

Chapter 9.3 Objectives and Vocabulary spectrum

spectral line spectrometer quantum theory quantum state Planck's constant uncertainty

principle photons probability

Explain the meaning of quantum theory.

Compare and contrast the Bohr and quantum atomic models.

Explain why probability is important when working with atom-sized systems.