Question 4 of 20
4 Points
A radioactive element has a half-life of 3,000 years. If a sample of this
element begins with a mass of 60 grams, how long would you have to wait for
the mass to decrease to 15 grams?
O
A. 6,000 years
O
B. 12,000 years
O
O
C. 3,000 years
D. 1,500 years
BH
