The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7 x 1010 decay events per second (the number of decay events from 1 g of radium in 1 second). a. What is the activity in Ci of 120 g K,"PO, (fu2 for s2p = 14.3 days)? Assume the atomic mass of "P is 32.0 u. b. What is the activity in mCi (millicuries) of 1.0 mol of plutonium-239 (ty2 = 24,000 years)? %3!

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The curie (Ci) is a commonly used unit for measuring nuclear
radioactivity: 1 curie of radiation is equal to 3.7 x 1010 decay
events per second (the number of decay events from 1 g of
radium in 1 second).
a. What is the activity in Ci of 120 g K,"PO, (fv2 for
32p = 14.3 days)? Assume the atomic mass of "P is 32.0 u.
b. What is the activity in mCi (millicuries) of 1.0 mol of
plutonium-239 (ty2 = 24,000 years)?
Transcribed Image Text:The curie (Ci) is a commonly used unit for measuring nuclear radioactivity: 1 curie of radiation is equal to 3.7 x 1010 decay events per second (the number of decay events from 1 g of radium in 1 second). a. What is the activity in Ci of 120 g K,"PO, (fv2 for 32p = 14.3 days)? Assume the atomic mass of "P is 32.0 u. b. What is the activity in mCi (millicuries) of 1.0 mol of plutonium-239 (ty2 = 24,000 years)?
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