0
Still curious? Ask our experts.
Chat with our AI personalities
CoachSuccess isn't just about winning—it's about vision, patience, and playing the long game.
Chat with Coach
JordanLooking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
DevinI've poured enough drinks to know that people don't always want advice—they just want to talk.
Chat with DevinAdd your answer:
Earn +20 ptsQ: What fraction of iodine 131 is remaining after 4 half- lives?
Write your answer...
Submit
Still have questions?
Continue Learning about Other Math
The half of iodine-125 is 60 days.What fraction of iodine-125 nuclides would be left after 360 days?
Assuming that "half" refers to "half-life", 360/60 = 6 so fraction left = 1/26 = 1/64
A rope is cut in half and half is discarded From the remaining half 1 quarter is cut off and discarded What fraction of the original rope is left?
3/8
How much Cu-61 (half-life about 3 hours) would remain from 2 mg sample after 6 hours?
6 hours = 2 half lives, thus 25 % would remain. 0.25 x 2 mg = 0.5 mg.Done another way...fraction remaining = 0.5^n where n = number of half lives = 6hr/3hr = 2fraction remaining = 0.5^2 = 0.250.25 x 2 mg = 0.5 mg
What fraction of U-238 atoms present at 1 half-life remain after 2 half-lives?
1/2 (50%) of them.
What is one half as a fraction?
1 over 2 is a half as a fraction
Trending Questions
What city is located at 34S latitude and 18E longitude?
Does the number 1 have a reciprocal?
How many mg in 3cc?
What is the definition of associative propery in math?
How would 7 people can share 6 apples each equally get in fractions?
What is the value of three to the fifth power?
What is 6000mm?
What is 80 x 4?
What is a 70 angle called?
What is the sum of 94 and -85?
A binomial probability distribution with 5 as the probability of a success will have a distribution with a shape best described by?
What is bigger 0.098 0.809 0.890?
Why is it impossible to find the square root of a negative?
One millimole equals to how many milligrams?
What is the landmark that determines the boundaries of the four quadrants?
Two consecutive odd integers such that their product is 143 more than 5 times their sum?
How many times can you subtract 0.05 from 5?
How many tens in 348?
What are two functions with infinitely many zeros?
What number is halfway between 4.5 and 6.5?
Copyright ©2025 Infospace Holdings LLC, A System1 Company. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Answers.