How many half-lives would go by in 36 h

Reference no: EM131238131

Technetium-99 (half-life = 6.0 h) is used in medical imaging. How many half-lives would go by in 36 h?

How many half-lives would have to elapse for a sample of a radioactive isotope to decrease from an activity of 160 cpm to an activity of 5 cpm?

Reference no: EM131238131

Questions Cloud

Epidemiologic surveillance important for public health : Why is epidemiologic surveillance important for public health? What role would it play if there were a bioterrorist attack? Discuss

Determining the american moral values : Choose three American moral values and explain whether or not you think these moral values are universal or uniquely American. How are these moral values dealt with in other cultures?

Finds that the activity of a sodium-24 sample is 480 cpm : A clinical technician finds that the activity of a sodium-24 sample is 480 cpm. What will be the activity of the sample 75 h later if the half-life of sodium-24 is 15 h? What is the half-life of thallium-206 if the activity of a sample drops from ..

Find an example of a capital project in your city county : Find an example of a capital project in your city, county, or state to share in this discussion forum. Explain the capital project and discuss the project you highlight in relation to at least two of the points raised in Chapter 6 of your text (an..

How many half-lives would go by in 36 h : How many half-lives would have to elapse for a sample of a radioactive isotope to decrease from an activity of 160 cpm to an activity of 5 cpm?

What formal term is applied to the vertical columns : Why are chemists so interested in the number of valence electrons in atoms?

What are the expected value and variance of xi : What are the expected value and variance of Xi? Let Y = the sum of the outcomes of 3 die rolls. What is Yin terms of X,? Use the expected value and variance of Xi you found in a. to find the expected value and variance of Y.

When would you become aware that the solution was saturated : Give one example each of a solid solution, a liquid solution, and a gaseous solution. When sugar is dissolved in iced tea, what is the solvent and what is the solute? When would you become aware that the solution was saturated?

How did humphrey davy discover six new elements : Name 6 of the first 12 elements that were isolated. Are most of these metals or nonmetals? List some of the first gaseous elements discovered. How did Humphrey Davy discover six new elements?

User Account

All Pages