Unit 4 Atoms and Light Topics

Atoms and the Periodic Table

Zumdahl Chapter 11: Modern Atomic Theory

Atoms

• Parts of a wave and how they are related to each other
  • Wavelength, Frequency, Velocity, and Energy
• The electromagnetic spectrum
  • Electromagnetic radiation
  • Properties of light and its dual nature
  • From gamma rays to radio waves: how does wavelength, frequency, and energy change?
  • The visible light spectrum and energy differences between the colors
• The history of the atom
  • Scientists contributing to our current model of the atom
  • Important experiments and discoveries
• Electron configurations
  • principal energy levels and number of electrons that can exist in each
    • Aufbau principle, Pauli exclusion principle, Hund’s rule
  • Write electron configuration for any element or ion (Don’t memorize exceptions, but know that they exist)
  • Use the noble gases shorthand when asked
• Electron orbitals
  • order of electron filling
  • shapes of sublevels (s, p and d)
  • number of orbitals  (s, p, d, f) (s: 1 orbital l, 2 e-, p:3 orbitals, 6e-, d :5 orbitals, 10 e-, f :7 orbitals, 14 e-)

Periodic Table

• The Periodic Law
  • Brief history of development of the modern periodic table
• Families: Names,  location on periodic table, characteristics and ion formation
  • Alkali Metals
  • Alkaline Earth Metals
  • Halogens
  • Noble Gases
• Periodic Trends
  • Atomic Radius
  • Ionization Energy
  • Electronegativity
  • Electron Affinity
  • Ion size
• Metals, Nonmetals and Metalloids (Semiconductors)
  • location in periodic table
  • basic properties