146,451 views
6 votes
6 votes
The half-life of a certain element is 100 days. How many half-lives will it be before only one-fourth of this element

remains?
4
50
25
2

User Michal Trojanowski
by
2.4k points

1 Answer

18 votes
18 votes
It will take 2 half-lives so D.
User Tsume
by
2.7k points