Nuclear Chemistry Chapter 10. Homework Assignment Chap 10 Sections 1 - 3 only Review Questions (p 211): 1 – 6 Multiple Choice Questions: 1 - 3.

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Presentation transcript:

Nuclear Chemistry Chapter 10

Homework Assignment Chap 10 Sections only Review Questions (p 211): 1 – 6 Multiple Choice Questions: 1 - 3

ParticleCompositionChargePenetration Alphaα 2 protons and 2 neutrons 2+ stopped by paper Betaβ an electron 1- stopped by aluminum Gammaγ pure energy 0 stopped by lead Radioactive particles

Fig 10.1 Origins of Radiation Exposure in the US Natural background (81%): Biggest source: Radon-222 Medicine (15%) Consumer products (4%)

Biological Effects of Radiation Radiation absorbed dose (rad) 1 rad = 1 x J/g of material Roentgen equivalent for man (rem) 1 rem = 1 rad x Q Quality Factor  = 10  = 1 Units of Radiation

Table 10.1

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