Register
If you have 50mg of a radioactive isotope, how much will remain after 1 Half Life? How much after 2 half lives?
211k views
1 vote
If you have 50mg of a radioactive isotope, how much will remain after 1 Half Life? How much after 2 half lives?

User Yulong Ao
by
6.3k points

1 Answer

3 votes

Answer:The quantity of radioactive nuclei at any given time will decrease to half as much in one half-life. For example, if there were 100 g of Cf -251 in a sample at some time, after 800 years, there would be 50 g of Cf -251 remaining. After another 800 years (1600 years total), there would only be 25 g remaining.

Step-by-step explanation:

User Jaime Sangcap
by
6.2k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.5m questions

8.7m answers

Other Questions

When weak acids react with strong bases, the H+ from the weak acid is transferred to the: metal of the strong base to form a metal hydride OH− from the strong base to form water and a salt salt that is
Some elements can have multiple molecular forms in the same physical state. these multiple forms are called a. isotopes. b. isotropes. c. allotropes. d. multi-tropes.
True or false: in the water cycle, water returns to Earth as condesation, usually in the form of rain or snow.
The original amount of a radioactive sample should be multiplied by which expression to calculate the amount of the sample that remains after n half-lives have passed? (1/2)xn (1/n)^2 (1/2)^n 1/(2n)
How many moles of ca(no32 are in 400 ml of a 0.80 m calcium nitrate solution?
Link Copied!