Types of Nuclear Decay

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Presentation Description

This presentation describes 5 types of nuclear decay and provides examples of writing nuclear equations for the different decay types.

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Types of Radioactive Decay:

Types of Radioactive Decay Five Types Alpha Emission Beta Emission Positron Emission Electron Capture ( K-capture ) Gamma Emission Type? Compare mass and atomic numbers of the original and decayed isotopes

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Alpha Emission ( a ) Emission of an alpha particle (Helium nucleus) from an unstable nucleus Product of alpha emission has an atomic number that is two less, and a mass number that is four less, than the original nucleus

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Beta Emission ( b or b - ) Emission of a beta particle (high speed electron) from an unstable nucleus Product of beta emission has an atomic number that is one more than the original; mass number is the same

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Positron Emission ( b + ) Emission of a positron from an unstable nucleus Positron = “+ charged electron” Positron emission = conversion of a proton to a neutron Product of positron emission has an atomic number that is one less than the original nucleus; mass number is the same

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Electron Capture (EC) Decay by capturing an inner level electron Proton is changed to a neutron Product of electron capture has an atomic number that is one less than the original nucleus; mass number stays the same Produces x-rays

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Gamma Emission ( g ) Emission of a gamma photon from an unstable nucleus Product of decay is in an excited energy state  metastable Product of gamma emission has a lower energy state; no change in atomic number or mass number

Examples – Fill in the missing particle:

Examples – Fill in the missing particle

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