Assuming each trial represents 1000years, and rock samples were found, the rock sample will be given half-life of
We know that the parent Isotope remaining is given by the expression
[tex]\frac{1}{2}^n[/tex]
where,
n = number of half lives passed
From the question, the parent Isotope remaining is [tex]25\%[/tex] lokium
[tex]0.25 = \frac{1}{4} = \frac{1}{2^2} = \frac{1}{2}^2[/tex]
Therefore,
[tex]\frac{1}{2}^2[/tex] means 2 half lives have passed.
If from the question,
1 half life = 1000years
Therefore,
The rock sample's age = [tex]2*1000 = 2000years[/tex]
For more information on rock samples such as lokium and DOL , visit
https://brainly.com/subject/chemistry
