Approximate half-life 4 days 8 days 1600 years 5730 years 24,120 years 4,470,000,000 Radioactive Substance Radon-222 Iodine-131 Radium-226 Carbon-14 Plutonium-239 Uranium-238 A) If we start with 8000 atoms of radium-226, how much would remain after 3,200 years? B) If we start with 20 atoms of plutonium-239, how many would remain after 48,240 years?

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Approximate half-life
4 days
8 days
1600 years
5730 years
24,120 years
4,470,000,000
Radioactive Substance
Radon-222
Iodine-131
Radium-226
Carbon-14
Plutonium-239
Uranium-238
A) If we start with 8000 atoms of radium-226, how much would remain after 3,200 years?
B) If we start with 20 atoms of plutonium-239, how many would remain after 48,240 years?
Transcribed Image Text:Approximate half-life 4 days 8 days 1600 years 5730 years 24,120 years 4,470,000,000 Radioactive Substance Radon-222 Iodine-131 Radium-226 Carbon-14 Plutonium-239 Uranium-238 A) If we start with 8000 atoms of radium-226, how much would remain after 3,200 years? B) If we start with 20 atoms of plutonium-239, how many would remain after 48,240 years?
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