CH 101 Study Guide - Final Guide: Photon, Gamma Ray, Spin Quantum Number
8 Dec 2016
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Document Summary
Early twentieth century scientists begin investigating the microscopic (quantum) world of matter: scientists: albert einstein, neils bohr, louis de broglie, max planck, werner heisenberg, Their investigative work laid the foundation of our current understanding of matter and its behavior at the subatomic (microscopic) eve. They discovered the following: microscopic matter (extremely small pieces of matter, such as the electron) behaved much differently than matter of the macroscopic (large, such as an element or a molecule) world. Subatomic particles appeared to exist in two conditions; they had natural duality. Ex. the electron presented particulate behavior (mass, volume) under a set of experimental conditions and exhibited energy-like characteristics under a different set of experimental parameters. Wave--matter duality concept: the number of electrons in a single speck of dust is higher than the number of people who have ever lived on earth. Electron behavior determines much of the behavior of atoms.
