86.2k views
4 votes
After 42 days a 2.0 g sample of phosphorus-32 contains only 0.25 g of the isotope. What is the half-life of phosphorus-32?

User Jkhadka
by
6.2k points

1 Answer

7 votes
2.0 g 1.0g 0.5g 0.25g
3 and a half lives = 42 days
User Mscrivo
by
6.5k points