A certain radioactive substance decays from 100000 grams to 1000 grams in 34 days. What's it's half-life ?

Half life of the radioactive element is 5 days.

Step-by-step explanation:

Formula to get the final amount after the radioactive decay in 't' days,

Here = Initial amount

λ = Decay constant

t = duration of decay

= Final amount

0.01 =

ln(0.01) =

-4.6052 = -34λ

λ = 0.13544

Since, λ =

    = 5.11

    ≈ 5 days

Therefore, half life of the radioactive element is 5 days.

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4