Question

If 1/8 half-lives elapsed in a rock containing Uranium-238 and Lead-206, what is the ratio of parent to daughter isotopes

Answer 1

The parent percentage is 93.75% and Daughter percentage is 6.25%

Step-by-step explanation:

we know , one complete life is 100%

Percentage of daughter in 1 half life = 50%

Percentage in 1/8 half lives=
`50* (1)/(8)`

= 6.25%

Percentage of parent isotope = 100 - percentage of daughter's isotope

= 100 - 6.25%

= 93.75%

Hence , the parent percentage is 93.75% and Daughter percentage is 6.25%.