barajaselizabeth526 barajaselizabeth526

20-04-2022
Chemistry

contestada

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

Respuesta :

jsimpson11000 jsimpson11000

04-05-2022

Answer:

60 days

Explanation:

2500 = 40000 ( 1/2) ^n

n = 4 half lives

4 half lives * 15 days/ halflife = 60 days

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