Nuclear videos What is radiation? https://www.youtube.com/watch?v=Zw0pHT47AAU&feature=youtu.be Types of radiation- veritasium https://www.youtube.com/watch?v=tYmMtSWPQEI&feature=youtu.be.

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Presentation transcript:

Nuclear videos What is radiation? Types of radiation- veritasium Radiation vs radioactive atoms- veritasium Fusion vs Fission

Nuclear Chemistry

Alpha Particles A helium nucleus Contains: 2 protons 2 neutrons Notation: He 4 2

Alpha Particles Move at about 1/10 th the speed of light. Can be stopped by: aluminum foil sheet of paper skin

Beta Particles A fast moving electron (negatively charged particle) formed by decomposition of a neutron. Notation: e n 0 e 1 1 p +

Beta Particles Move at near the speed of light. Penetrate about 100 times greater than alpha particles Can be stopped by: aluminum shield hand

Gamma Ray They are high-energy electromagnetic waves NO mass NO electrical charge Notation:  0 0

Gamma Ray The most penetrating of all the particles. Can be stopped by: Lead shield Concrete

Penetrating Power

Penetrating Power Alpha Beta Gamma

Radioactive Particle ParticlesSymbolCompositionChargePenetrating Power Alpha,  He 2 protons 2 neutrons 2+Low Beta,  0 -1 e electron times greater than that of alpha Gamma,  0  0 electromagnetic waves 0Highest 4 2

Alpha RadiationBeta RadiationGamma Radiation αβγ Helium nucleusHigh energy electron He 0e0e 0 γ Cannot penetrate skin Blocked by a thin sheet of plastic or metal Exposure to the body is dangerous Blocked by a sheet of paper Blocked by very dense materials like lead 2 0