alpha decay a helium- 4 nucleus (two protons and two neutrons). is produced by nuclear fission...

Radioactive Decay

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Page 1: 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

Radioactive Decay

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 chargeHas the mass of 2 protons and 2 neutrons

Page 3: 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

Beta DecayEmerges 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)

Page 4: 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

Gamma DecayIs 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

Page 5: 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

Example of Radioactive Decay

Page 6: 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

Symbols

Alpha: αBeta: βGamma: γ

Page 7: 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

Page 8: 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

Electromagnetic Spectrum

Page 9: 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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