Khan Academy on a Stick
Decaimiento radiactivo
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Types of Decay
(EN)
Alpha, Beta, Gamma Decay and Positron Emission
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Half-Life
(EN)
Introduction to half-life
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Exponential Decay Formula Proof (can skip, involves Calculus)
(EN)
Showing that N(t)=Ne^(-kt) describes the amount of a radioactive substance we have at time T. For students with background in Calculus. Not necessary for intro chemistry class.
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Introduction to Exponential Decay
(EN)
Introduction to Exponential Decay
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More Exponential Decay Examples
(EN)
A few more examples of exponential decay.