Unit 05: Modern Atomic Theory & Electron Configuration

Enduring Understandings:

1. Chemical and physical properties of matter can be explained by the structure and the arrangements of atoms, ions, or molecules, and the forces between them.

2. Energy changes accompany changes in matter.

Essential Questions:

1. How do the earlier atomic models compare to the current model?

2. Why is some electromagnetic radiation harmful to humans?

3. How are electrons arranged in an atom?

Vocabulary:

Electromagnetic Radiation

Electromagnetic Spectrum

Electron Configuration

Frequency (ν)

Wavelength (λ)

Excited State

Ground State

Orbital