Half Life of a Certain Radioactive Element is 3.465 Days. Find Its Disintegration Constant. - Physics (Theory)

The half-life of a certain radioactive element is 3.465 days. Find its disintegration constant.

Solution

TH = 3.465 days, λ = ?

We know that
λ = 0.693/"T"_"H"

λ = 0.693/( 3.465 xx 24 xx 60 xx 60) S-1

λ = 2.31 x 10-6 s-1