Alpha Decay A Helium- 4 nucleus (two protons and two neutrons). Is produced by nuclear fission Massive nucleus breaks apart into two less-massive nuclei.

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Radioactive Decay. - Alpha Decay The emission of an particle from the nucleus of an atom is called alpha decay An alpha particle is just a helium nucleus.
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Presentation transcript:

Alpha Decay A Helium- 4 nucleus (two protons and two neutrons). Is produced by nuclear fission Massive nucleus breaks apart into two less-massive nuclei (one of them the alpha particle). Has a positive charge Has the mass of 2 protons and 2 neutrons

Beta Decay Emerges from a weak decay process. 1 neutron inside an atom decays to produce a proton and the beta electron. Has a negative charge. Changes the nuclear count of the atom. 1 neutron becomes a proton (electron is given off)

Gamma Decay Is a photon. Is produced when a massive nucleus (produced by fission) relaxes from the excited state to its resting state. No particles given off (only energy) No mass

Example of Radioactive Decay

Symbols Alpha: α Beta: β Gamma: γ

Electromagnetic Spectrum

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