Unit1_Chap12_SUM08Zumdhal-1-1

Unit1_Chap12_SUM08Zumdhal-1-1 - UNIT ONE(CHAPTER 12 QUANTUM...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: UNIT ONE (CHAPTER 12) : QUANTUM MECHANICS AND ATOMIC THEORY • At the beginning of the XX century, Rutherford proposed his nuclear atom model. It was a breakthrough! • Using classical mechanics, Rutherford attempted to describe the electronic structure. He failed! • Soon, it became clear that the laws of classical mechanics that applied very nicely to the macroscopic world do not apply in the world of electrons. New laws had to be developed. • The idea that matter and energy were two completely distinct entities had to be revised. • Quantum mechanics was developed and lead to the development of the modern nuclear model of the atom. Electromagnetic Radiation • In the atomic world, we “observe” objects based on how they interact with electromagnetic radiation (light). Once our observations are done, we can propose a structure. • Electromagnetic Radiation is a form of energy transmission. It consists of an oscillating electric and magnetic field that travel perpendicular to each other and to the direction of propagation through space (fig 12.1). Examples: microwaves, infrared, visible light, ultraviolet, x-ray, etc.. • Because a charged particle, such as the electron, interacts with an electric field, electromagnetic radiation makes a good tool for the study of the atom. (Think about a swimmer and a wave!) • Electromagnetic radiation, radiant energy, can be described in terms of waves and is characterized by its wavelength and its frequency....
View Full Document

{[ snackBarMessage ]}

Page1 / 4

Unit1_Chap12_SUM08Zumdhal-1-1 - UNIT ONE(CHAPTER 12 QUANTUM...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online