The Decay Constant of Radon-222 Is 0 $10^7$ B)767 × $10^7$ C)834 ×

question 53

Multiple Choice

The decay constant of radon-222 is 0.181 d^-1.If a sample of radon initially contains 6.00 × 10⁸ radon atoms,how many of them are left after 10.0 d?

• A)9.82 × \(10^7\)
• B)7.67 × \(10^7\)
• C)8.34 × \(10 ^ { 8 }\)
• D)7.29 × \(10 ^ { 8 }\)
• E)8.56 × \(10 ^ { 8 }\)

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