The Alpha Particles Emitted by Radon-222 Have an Energy of 8.8

question 93

Multiple Choice

The alpha particles emitted by radon-222 have an energy of 8.8 * 10^-13 J. If a 200. g Pb brick absorbs 1.0 * 10¹⁰ alpha particles from radon decay, what dose in rads will the brick absorb

• A) 3.6 rad
• B) 4.0 rad
• C) 4.4 rad
• D) 4.8 rad
• E) None of the above

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