NUCLEAR ISSUES... - Earth 2 Thursday Announcements Lecture...

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Earth 2 Thursday, April 22, 1999 Announcements: Lecture notes: NUCLEAR ISSUES... Radioactivity Radioactivity is the spontaneous change/decay of the nucleus of an atom to another atom Ex. Radium 225 --> Radon 222 + Helium 4 Radioisotopes are different elements that have different isotopes Parent elements are the elements that are radioactively decayed Daughter elements are the product that are radioactively decayed In exponential decay , each component has a characteristical half-life, which is the time it takes for a parent to become a daughter Ways to Generate Energy 1. Fission -split nuclei by bombarding it with nuetrons 2. Fusion -the process of combining two or more nuclei
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If the atomic number of an element is less than that of iron , it will go through fusion If the atomic number of an element is greater than that of iron , it will go through fission Idea of Splitting Atoms Why is Nuclear Power such a Failure?
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