- #1

pat666

- 709

- 0

## Homework Statement

c) In 420 days, the activity of a sample of polonium, Po, fell to one-eighth of its initial value. i) Calculate the half-life of polonium.

## Homework Equations

## The Attempt at a Solution

if the activity fell by 1/8 then it went through 4 half liefs (1/2*4=1/8) so the half life is simply 420/4=105days. The wording confuses me though because of the use of "activity" so I think what I've done might be wrong?

Thanks