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Ethan_Tab
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Homework Statement
Fluorine-18 is an isotope of fluorine often used in positron emission tomography, as it undergoes beta negative decay.
- a) Determine the decay equation for fluorine-18.
- b) If the positron emitted collides with an electron, it annihilates the electron and emits 2 gamma particles in the opposite direction. Determine the energy that one gamma particle has as a result of this collision. m(electron/positron) = 0.000549 u
Homework Equations
E=mc^2
The Attempt at a Solution
1) 189F---->188O+e-1
2) I am not too sure about this one. I am assuming it has something to do with e=mc^2 but I'm not sure how to approach it