Question

If a radioisotope has a half-life of 10 years, how much of the original material would remain after 40 years?

Answer 1

the initial amount is not given?

Answer 2

no

Answer 3

Formula:
\(\Large A=A_o • (\frac{1}{2})^{\frac{t}{h}}\)
where A is the final amount
Ao is the orignal amount
t is the time
and h is the half life

Answer 4

Thank you :)

Answer 5

no problem ;p
and welcome to Openstudy !! (^_^)

Answer 6

Thanks :) I'm liking it already.

Answer 7

yeah, you should ^.^
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if you need help about this site you can ask me or the people who have an "A" beside their usernames, they are ambassadors :)

Answer 8

What do the ambassadors do?

Answer 9

@Compassionatee
he can tell you everything ;p

Answer 10

@Compassionate

Answer 11

Awesome! Thanks again for all your help :)