NUCLEAR STABILITYPatterns of Radioactive Decay

• Alpha decay (_) –heavy isotopes

• Beta decay (__) –neutron rich isotopes

• Positron emission (__)–proton rich isotopes

• Electron capture–proton rich isotopes

X-rays:

• Gamma-ray emission (___-most all unstable isotopes

• Spontaneous fission–very heavy isotopes

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