Atomic Structure

Review Packet

Objectives:

• Discuss the development of the atom from its earliest model to the modern day atom
• Identify the correct number of subatomic particles for atoms, ions, and isotopes
• Calculate the average atomic mass of an atom from isotopic data
• The quantum model of the atom
• Quantum numbers
• Electron configurations
• Periodic trends
• Atomic radii
• Ionization energies
• Electron affinities
• Oxidation states

Chapters 2, 7, 8, and 22

Equations and Constants (on yellow sheet)

E = hv

c = λv

p = mv

E_n = -2.1789 x 10^-18 joule

n²

Notes

I. Historical Development of the Modern Atomic Theory

A. Dalton’s Model of the Atom

B. Thomson’s Model of Atomic Structure

C. Rutherford’s Discovery of the Nucleus

D. Modern Atomic Theory

1. Planck’s Quantized Energies

2. Einstein’s Photoelectric Effect

3. Bohr’s Model

4. Quantum Model of the Atom

a. Heisenberg Uncertainty Principle

b. Schrödinger Equation

5. Quantum Numbers

II. Periodic Table

A. Subatomic Particles

B. Electron Configurations

1. Diamagnetism

2. Paramagnetism

C. Orbital Diagrams

D. Periodic Trends

1. Atomic Radii

2. Ionization Energy

3. Ionic radius

4. Electron affinity

5. Electronegativity

E. Atomic Number

F. Mass Number

G. Isotopes