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How much time would it take for 40000 atoms of sodium-24 (half-life is 15 days) to decay to 2500 atoms?
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How much time would it take for 40000 atoms of sodium-24 (half-life is 15 days) to decay to 2500 atoms?

User Simonwh
by
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1 Answer

11 votes

Answer:

60 days

Step-by-step explanation:

2500 = 40000 ( 1/2) ^n

n = 4 half lives

4 half lives * 15 days/ halflife = 60 days

User Sdhaus
by
9.1k points
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