at 12 minutes, how much of the radioactive isotope is remaining? select the best option. 10% 20% 50% 70%
at 12 minutes, how much of the radioactive isotope is remaining? select the best option. 10% 20% 50% 70%
Answer
Explanation:
Step1: Locate 12 minutes on x - axis
Find the point corresponding to 12 minutes on the time (x - axis) of the graph.
Step2: Read y - value
Read the value on the y - axis (percentage of unstable isotopes remaining) at the x - value of 12 minutes. The y - value at x = 12 is 10%.
Answer:
10%