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Using the mass defect to calculate the energy released when a helium nucleus formed. Introduction to the nuclear strong force.
Using the ratio of neutrons to protons to figure out of a nucleus will be stable or radioactive.
Alpha, Beta, Gamma Decay and Positron Emission
Writing nuclear equations for alpha, beta, and gamma decay.
Carbon dating is a real-life example of a first-order reaction. This video explains half-life in the context of radioactive decay.
Definition of half-life and graphing the decay of phosphorus-32. Calculating how much phosphorus-32 remains after 57.2 days.
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.
Introduction to Exponential Decay. Using the exponential decay formula to calculate k, calculating the mass of carbon-14 remaining after a given time, and calculating the time it takes to have a specific mass remaining .
A few more examples of exponential decay. Practice calculating k from half-life, and calculating initial mass.
Using exponential decay equation to solve for relationship between k and half-life. Using semi-log plot to get graph of a straight line with slope of -k.