CHEM 109 DRAKE WKU EXAM 2

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7 Terms

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Radioisotopes

Unstable isotopes that emit energy spontaneously to try and stabilize nucleus

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Alpha Particles

High energy, +2 charge, 4/2 He

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Beta Particles

High energy, electrons, -1 charge, 0/-1 e

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Positron

Antiparticle of electron, 0/+1 e

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Gamma Rays

High energy radiation released from radioactive nucleus, no mass, no charge

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Half life

The time it takes for 1/2 of a radioactive isotope to decay, property of each isotope

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Transmutation

When a stable nucleus is bombarded by a small particle to convert the nucleus to a radioactive nucleus