Question

Argon-39 has a half-life of 269 years. How long will it take for 52.5 g of a 60.0 g sample to decay to its daughter isotope?

Answer 1

Half life = (time * log 2) / log (beginning amount / ending amount) I think this is the half life equation you're looking for.

Answer 2

ah I figured it out, thank you though!

Answer 3

Elapsed time = Half life * log (beginning amount/ending amount) all over log(2)

Answer 4

But good for you have a wonderful night :D

Answer 5

thanks buddy