208Po undergoes α decay to form stable 204Pb with a halflife of 2.90 years. A sample of 208Po was me — Kinetics Chemistry Question
Question
208Po undergoes α decay to form stable 204Pb with a halflife of 2.90 years. A sample of 208Po was measured with a Geiger counter 5.20 years ago as having an activity of 1320 disintegrations per second. What is its activity today?
A.
137 s-1
B.✓ Correct
381 s-1
C.
736 s-1
D.
1320 s-1
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