Question

The decay rate, k, for a particular radioactive element is 2.8%, where time is measured in years. Find the half-life of the element

Answer 1

@timo86m :D

Answer 2

@ranga

Answer 3

Half-life = ln(2) / k

Answer 4

ln(2)/0.028?

Answer 5

Half life = ln(2) / .028 = 24.8 years

Answer 6

almost used log in my answer, got 34 :P thank you.

Answer 7

yw.

Answer 8

half life = ln(2) / decay constant
half life = .693 / .028
half life = 24.75 years