Question 5 20 pts
Scientists trying to calculate the half-life (the time it takes for half of a sample to decay)
of Phosphorus-32, took measurements of the sample once every day for five days. On
what day should about a tenth of the original amount of P-32 remain? (Round answer to
the nearest day.)
Day Mass (g)
t
0
100
1
95
2
90.5
3
85
4.
82
u
78
?
10