September 2012
Beginner
576 pages
15h 11m
English
Content preview from Principles of Quantum MechanicsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 12
The Spin
12.1 INTRODUCTION
In Chapter 10, we solved Schrodinger equation for an electron in hydrogen atom and found discrete values of energy and orbital angular momentum. When an electron makes transition from higher energy state with energy Em to a lower energy state with energy En, allowed by selection rules (to be discussed in a later chapter), the emitted radiation has wavelength λ = hc /(Em − En). When the predicted spectrum was compared with the observed spectral lines, there was agreement in almost whole spectrum except in finer details of (some) lines. In fact, the theoretical spectrum cannot account for a few additional spectral lines seen experimentally. Most important of these is the fact that many of the observed spectral ...
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